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Finding the Fourth Proportional to 68,388.46, 102,572.40 and 21,635.26

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Solution

The fourth proportional to 68,388.46, 102,572.40 and 21,635.26 is: 32,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388.46 : 102,572.40 = 21,635.26 : x
  2. Step 2: Convert to fraction form
    68,388.46/102,572.40 = 21,635.26/x
  3. Step 3: Cross multiply
    68,388.46x = 102,572.40 × 21,635.26
  4. Step 4: Simplify right side
    68,388.46x = 2,219,180,542.82
  5. Step 5: Solve for x
    x = 2,219,180,542.82/68,388.46
  6. Step 6: Final answer
    x = 32,449.63

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