Finding the Fourth Proportional to 22,661.72, 31,275.15 and 13,233.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,661.72 : 31,275.15 = 13,233.32 : x
2. Step 2: Convert to fraction form
   22,661.72/31,275.15 = 13,233.32/x
3. Step 3: Cross multiply
   22,661.72x = 31,275.15 × 13,233.32
4. Step 4: Simplify right side
   22,661.72x = 413,874,068.00
5. Step 5: Solve for x
   x = 413,874,068.00/22,661.72
6. Step 6: Final answer
   x = 18,263.14