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Finding the Fourth Proportional to 123,238.22, 170,068.74 and 66,649.58

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Solution

The fourth proportional to 123,238.22, 170,068.74 and 66,649.58 is: 91,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,238.22 : 170,068.74 = 66,649.58 : x
  2. Step 2: Convert to fraction form
    123,238.22/170,068.74 = 66,649.58/x
  3. Step 3: Cross multiply
    123,238.22x = 170,068.74 × 66,649.58
  4. Step 4: Simplify right side
    123,238.22x = 11,335,010,092.13
  5. Step 5: Solve for x
    x = 11,335,010,092.13/123,238.22
  6. Step 6: Final answer
    x = 91,976.42

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