Finding the Fourth Proportional to 88,822.32, 122,516.76 and 56,940.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,822.32 : 122,516.76 = 56,940.72 : x
2. Step 2: Convert to fraction form
   88,822.32/122,516.76 = 56,940.72/x
3. Step 3: Cross multiply
   88,822.32x = 122,516.76 × 56,940.72
4. Step 4: Simplify right side
   88,822.32x = 6,976,192,526.47
5. Step 5: Solve for x
   x = 6,976,192,526.47/88,822.32
6. Step 6: Final answer
   x = 78,540.99