Finding the Fourth Proportional to 52,725.72, 79,455.37 and 47,729.61

Step by Step Solution

1. Step 1: Write the proportion equation
   52,725.72 : 79,455.37 = 47,729.61 : x
2. Step 2: Convert to fraction form
   52,725.72/79,455.37 = 47,729.61/x
3. Step 3: Cross multiply
   52,725.72x = 79,455.37 × 47,729.61
4. Step 4: Simplify right side
   52,725.72x = 3,792,373,941.83
5. Step 5: Solve for x
   x = 3,792,373,941.83/52,725.72
6. Step 6: Final answer
   x = 71,926.45