Finding the Fourth Proportional to 81,707.49, 112,759.25 and 45,896.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,707.49 : 112,759.25 = 45,896.72 : x
2. Step 2: Convert to fraction form
   81,707.49/112,759.25 = 45,896.72/x
3. Step 3: Cross multiply
   81,707.49x = 112,759.25 × 45,896.72
4. Step 4: Simplify right side
   81,707.49x = 5,175,278,931.38
5. Step 5: Solve for x
   x = 5,175,278,931.38/81,707.49
6. Step 6: Final answer
   x = 63,339.10