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Finding the Fourth Proportional to 236,690.77, 326,635.86 and 129,263.96

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Solution

The fourth proportional to 236,690.77, 326,635.86 and 129,263.96 is: 178,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,690.77 : 326,635.86 = 129,263.96 : x
  2. Step 2: Convert to fraction form
    236,690.77/326,635.86 = 129,263.96/x
  3. Step 3: Cross multiply
    236,690.77x = 326,635.86 × 129,263.96
  4. Step 4: Simplify right side
    236,690.77x = 42,222,244,665.16
  5. Step 5: Solve for x
    x = 42,222,244,665.16/236,690.77
  6. Step 6: Final answer
    x = 178,385.68

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