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Finding the Fourth Proportional to 15,748.71, 23,619.82 and 6,978.03

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Solution

The fourth proportional to 15,748.71, 23,619.82 and 6,978.03 is: 10,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.71 : 23,619.82 = 6,978.03 : x
  2. Step 2: Convert to fraction form
    15,748.71/23,619.82 = 6,978.03/x
  3. Step 3: Cross multiply
    15,748.71x = 23,619.82 × 6,978.03
  4. Step 4: Simplify right side
    15,748.71x = 164,819,812.55
  5. Step 5: Solve for x
    x = 164,819,812.55/15,748.71
  6. Step 6: Final answer
    x = 10,465.61

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