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Finding the Fourth Proportional to 74,570.92, 102,906.54 and 40,578.25

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Solution

The fourth proportional to 74,570.92, 102,906.54 and 40,578.25 is: 55,997.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,570.92 : 102,906.54 = 40,578.25 : x
  2. Step 2: Convert to fraction form
    74,570.92/102,906.54 = 40,578.25/x
  3. Step 3: Cross multiply
    74,570.92x = 102,906.54 × 40,578.25
  4. Step 4: Simplify right side
    74,570.92x = 4,175,767,306.76
  5. Step 5: Solve for x
    x = 4,175,767,306.76/74,570.92
  6. Step 6: Final answer
    x = 55,997.26

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