Finding the Fourth Proportional to 81,255.88, 112,133.37 and 45,446.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,255.88 : 112,133.37 = 45,446.50 : x
2. Step 2: Convert to fraction form
   81,255.88/112,133.37 = 45,446.50/x
3. Step 3: Cross multiply
   81,255.88x = 112,133.37 × 45,446.50
4. Step 4: Simplify right side
   81,255.88x = 5,096,069,199.71
5. Step 5: Solve for x
   x = 5,096,069,199.71/81,255.88
6. Step 6: Final answer
   x = 62,716.31