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Finding the Fourth Proportional to 18,971.18, 28,453.62 and 5,820.02

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Solution

The fourth proportional to 18,971.18, 28,453.62 and 5,820.02 is: 8,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.18 : 28,453.62 = 5,820.02 : x
  2. Step 2: Convert to fraction form
    18,971.18/28,453.62 = 5,820.02/x
  3. Step 3: Cross multiply
    18,971.18x = 28,453.62 × 5,820.02
  4. Step 4: Simplify right side
    18,971.18x = 165,600,637.47
  5. Step 5: Solve for x
    x = 165,600,637.47/18,971.18
  6. Step 6: Final answer
    x = 8,729.06

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