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Finding the Fourth Proportional to 18,921.26, 28,372.01 and 7,065.27

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Solution

The fourth proportional to 18,921.26, 28,372.01 and 7,065.27 is: 10,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.26 : 28,372.01 = 7,065.27 : x
  2. Step 2: Convert to fraction form
    18,921.26/28,372.01 = 7,065.27/x
  3. Step 3: Cross multiply
    18,921.26x = 28,372.01 × 7,065.27
  4. Step 4: Simplify right side
    18,921.26x = 200,455,875.77
  5. Step 5: Solve for x
    x = 200,455,875.77/18,921.26
  6. Step 6: Final answer
    x = 10,594.22

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