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Finding the Fourth Proportional to 39,172.98, 54,058.50 and 21,267.84

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Solution

The fourth proportional to 39,172.98, 54,058.50 and 21,267.84 is: 29,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,172.98 : 54,058.50 = 21,267.84 : x
  2. Step 2: Convert to fraction form
    39,172.98/54,058.50 = 21,267.84/x
  3. Step 3: Cross multiply
    39,172.98x = 54,058.50 × 21,267.84
  4. Step 4: Simplify right side
    39,172.98x = 1,149,707,528.64
  5. Step 5: Solve for x
    x = 1,149,707,528.64/39,172.98
  6. Step 6: Final answer
    x = 29,349.50

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