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Finding the Fourth Proportional to 18,810.81, 28,196.33 and 6,956.97

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Solution

The fourth proportional to 18,810.81, 28,196.33 and 6,956.97 is: 10,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.81 : 28,196.33 = 6,956.97 : x
  2. Step 2: Convert to fraction form
    18,810.81/28,196.33 = 6,956.97/x
  3. Step 3: Cross multiply
    18,810.81x = 28,196.33 × 6,956.97
  4. Step 4: Simplify right side
    18,810.81x = 196,161,021.92
  5. Step 5: Solve for x
    x = 196,161,021.92/18,810.81
  6. Step 6: Final answer
    x = 10,428.10

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