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Finding the Fourth Proportional to 34,540.57, 47,664.95 and 20,936.66

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Solution

The fourth proportional to 34,540.57, 47,664.95 and 20,936.66 is: 28,891.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,540.57 : 47,664.95 = 20,936.66 : x
  2. Step 2: Convert to fraction form
    34,540.57/47,664.95 = 20,936.66/x
  3. Step 3: Cross multiply
    34,540.57x = 47,664.95 × 20,936.66
  4. Step 4: Simplify right side
    34,540.57x = 997,944,852.07
  5. Step 5: Solve for x
    x = 997,944,852.07/34,540.57
  6. Step 6: Final answer
    x = 28,891.97

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