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Finding the Fourth Proportional to 78,650.06, 108,538.43 and 42,839.96

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Solution

The fourth proportional to 78,650.06, 108,538.43 and 42,839.96 is: 59,119.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,650.06 : 108,538.43 = 42,839.96 : x
  2. Step 2: Convert to fraction form
    78,650.06/108,538.43 = 42,839.96/x
  3. Step 3: Cross multiply
    78,650.06x = 108,538.43 × 42,839.96
  4. Step 4: Simplify right side
    78,650.06x = 4,649,781,242.77
  5. Step 5: Solve for x
    x = 4,649,781,242.77/78,650.06
  6. Step 6: Final answer
    x = 59,119.87

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