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Finding the Fourth Proportional to 123,999.57, 171,120.62 and 67,412.16

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Solution

The fourth proportional to 123,999.57, 171,120.62 and 67,412.16 is: 93,029.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,999.57 : 171,120.62 = 67,412.16 : x
  2. Step 2: Convert to fraction form
    123,999.57/171,120.62 = 67,412.16/x
  3. Step 3: Cross multiply
    123,999.57x = 171,120.62 × 67,412.16
  4. Step 4: Simplify right side
    123,999.57x = 11,535,610,277.68
  5. Step 5: Solve for x
    x = 11,535,610,277.68/123,999.57
  6. Step 6: Final answer
    x = 93,029.44

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