Finding the Fourth Proportional to 72,422.52, 108,138.33 and 64,877.37

Step by Step Solution

1. Step 1: Write the proportion equation
   72,422.52 : 108,138.33 = 64,877.37 : x
2. Step 2: Convert to fraction form
   72,422.52/108,138.33 = 64,877.37/x
3. Step 3: Cross multiply
   72,422.52x = 108,138.33 × 64,877.37
4. Step 4: Simplify right side
   72,422.52x = 7,015,730,446.59
5. Step 5: Solve for x
   x = 7,015,730,446.59/72,422.52
6. Step 6: Final answer
   x = 96,872.22