Finding the Fourth Proportional to 81,252, 112,140.72 and 47,711.52

Step by Step Solution

1. Step 1: Write the proportion equation
   81,252 : 112,140.72 = 47,711.52 : x
2. Step 2: Convert to fraction form
   81,252/112,140.72 = 47,711.52/x
3. Step 3: Cross multiply
   81,252x = 112,140.72 × 47,711.52
4. Step 4: Simplify right side
   81,252x = 5,350,404,205.09
5. Step 5: Solve for x
   x = 5,350,404,205.09/81,252
6. Step 6: Final answer
   x = 65,849.51