Finding the Fourth Proportional to 22,707.01, 34,059.12 and 8,472.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,707.01 : 34,059.12 = 8,472.72 : x
2. Step 2: Convert to fraction form
   22,707.01/34,059.12 = 8,472.72/x
3. Step 3: Cross multiply
   22,707.01x = 34,059.12 × 8,472.72
4. Step 4: Simplify right side
   22,707.01x = 288,573,219.73
5. Step 5: Solve for x
   x = 288,573,219.73/22,707.01
6. Step 6: Final answer
   x = 12,708.55