Finding the Fourth Proportional to 80,658.72, 111,309.84 and 47,124.72

Step by Step Solution

1. Step 1: Write the proportion equation
   80,658.72 : 111,309.84 = 47,124.72 : x
2. Step 2: Convert to fraction form
   80,658.72/111,309.84 = 47,124.72/x
3. Step 3: Cross multiply
   80,658.72x = 111,309.84 × 47,124.72
4. Step 4: Simplify right side
   80,658.72x = 5,245,445,043.24
5. Step 5: Solve for x
   x = 5,245,445,043.24/80,658.72
6. Step 6: Final answer
   x = 65,032.58