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Finding the Fourth Proportional to 28,413.18, 42,614.91 and 12,827.16

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Solution

The fourth proportional to 28,413.18, 42,614.91 and 12,827.16 is: 19,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.18 : 42,614.91 = 12,827.16 : x
  2. Step 2: Convert to fraction form
    28,413.18/42,614.91 = 12,827.16/x
  3. Step 3: Cross multiply
    28,413.18x = 42,614.91 × 12,827.16
  4. Step 4: Simplify right side
    28,413.18x = 546,628,268.96
  5. Step 5: Solve for x
    x = 546,628,268.96/28,413.18
  6. Step 6: Final answer
    x = 19,238.55

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