Finding the Fourth Proportional to 22,992.72, 31,733.16 and 13,435.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,992.72 : 31,733.16 = 13,435.76 : x
2. Step 2: Convert to fraction form
   22,992.72/31,733.16 = 13,435.76/x
3. Step 3: Cross multiply
   22,992.72x = 31,733.16 × 13,435.76
4. Step 4: Simplify right side
   22,992.72x = 426,359,121.80
5. Step 5: Solve for x
   x = 426,359,121.80/22,992.72
6. Step 6: Final answer
   x = 18,543.22