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Finding the Fourth Proportional to 15,903.04, 21,941.76 and 9,940.78

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Solution

The fourth proportional to 15,903.04, 21,941.76 and 9,940.78 is: 13,715.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,903.04 : 21,941.76 = 9,940.78 : x
  2. Step 2: Convert to fraction form
    15,903.04/21,941.76 = 9,940.78/x
  3. Step 3: Cross multiply
    15,903.04x = 21,941.76 × 9,940.78
  4. Step 4: Simplify right side
    15,903.04x = 218,118,208.97
  5. Step 5: Solve for x
    x = 218,118,208.97/15,903.04
  6. Step 6: Final answer
    x = 13,715.50

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