Finding the Fourth Proportional to 81,672.76, 112,704.76 and 45,862.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,672.76 : 112,704.76 = 45,862.12 : x
2. Step 2: Convert to fraction form
   81,672.76/112,704.76 = 45,862.12/x
3. Step 3: Cross multiply
   81,672.76x = 112,704.76 × 45,862.12
4. Step 4: Simplify right side
   81,672.76x = 5,168,879,227.69
5. Step 5: Solve for x
   x = 5,168,879,227.69/81,672.76
6. Step 6: Final answer
   x = 63,287.68