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Finding the Fourth Proportional to 10,491.04, 15,729.20 and 4,644.48

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Solution

The fourth proportional to 10,491.04, 15,729.20 and 4,644.48 is: 6,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.04 : 15,729.20 = 4,644.48 : x
  2. Step 2: Convert to fraction form
    10,491.04/15,729.20 = 4,644.48/x
  3. Step 3: Cross multiply
    10,491.04x = 15,729.20 × 4,644.48
  4. Step 4: Simplify right side
    10,491.04x = 73,053,954.82
  5. Step 5: Solve for x
    x = 73,053,954.82/10,491.04
  6. Step 6: Final answer
    x = 6,963.46

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