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Finding the Fourth Proportional to 123,491.11, 170,417.74 and 66,902.49

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Solution

The fourth proportional to 123,491.11, 170,417.74 and 66,902.49 is: 92,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,491.11 : 170,417.74 = 66,902.49 : x
  2. Step 2: Convert to fraction form
    123,491.11/170,417.74 = 66,902.49/x
  3. Step 3: Cross multiply
    123,491.11x = 170,417.74 × 66,902.49
  4. Step 4: Simplify right side
    123,491.11x = 11,401,371,146.17
  5. Step 5: Solve for x
    x = 11,401,371,146.17/123,491.11
  6. Step 6: Final answer
    x = 92,325.44

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