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Finding the Fourth Proportional to 123,242.88, 170,075.17 and 66,654.25

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Solution

The fourth proportional to 123,242.88, 170,075.17 and 66,654.25 is: 91,982.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,242.88 : 170,075.17 = 66,654.25 : x
  2. Step 2: Convert to fraction form
    123,242.88/170,075.17 = 66,654.25/x
  3. Step 3: Cross multiply
    123,242.88x = 170,075.17 × 66,654.25
  4. Step 4: Simplify right side
    123,242.88x = 11,336,232,899.97
  5. Step 5: Solve for x
    x = 11,336,232,899.97/123,242.88
  6. Step 6: Final answer
    x = 91,982.86

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