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Finding the Fourth Proportional to 18,866.76, 28,300.14 and 9,013.02

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Solution

The fourth proportional to 18,866.76, 28,300.14 and 9,013.02 is: 13,519.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.76 : 28,300.14 = 9,013.02 : x
  2. Step 2: Convert to fraction form
    18,866.76/28,300.14 = 9,013.02/x
  3. Step 3: Cross multiply
    18,866.76x = 28,300.14 × 9,013.02
  4. Step 4: Simplify right side
    18,866.76x = 255,069,727.82
  5. Step 5: Solve for x
    x = 255,069,727.82/18,866.76
  6. Step 6: Final answer
    x = 13,519.53

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