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Finding the Fourth Proportional to 123,459.26, 170,374.59 and 66,870.63

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Solution

The fourth proportional to 123,459.26, 170,374.59 and 66,870.63 is: 92,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,459.26 : 170,374.59 = 66,870.63 : x
  2. Step 2: Convert to fraction form
    123,459.26/170,374.59 = 66,870.63/x
  3. Step 3: Cross multiply
    123,459.26x = 170,374.59 × 66,870.63
  4. Step 4: Simplify right side
    123,459.26x = 11,393,056,169.29
  5. Step 5: Solve for x
    x = 11,393,056,169.29/123,459.26
  6. Step 6: Final answer
    x = 92,281.91

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