Finding the Fourth Proportional to 22,464.38, 31,002.42 and 12,905.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,464.38 : 31,002.42 = 12,905.82 : x
2. Step 2: Convert to fraction form
   22,464.38/31,002.42 = 12,905.82/x
3. Step 3: Cross multiply
   22,464.38x = 31,002.42 × 12,905.82
4. Step 4: Simplify right side
   22,464.38x = 400,111,652.08
5. Step 5: Solve for x
   x = 400,111,652.08/22,464.38
6. Step 6: Final answer
   x = 17,810.94