Finding the Fourth Proportional to 81,253.20, 112,131.84 and 45,444.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,253.20 : 112,131.84 = 45,444.72 : x
2. Step 2: Convert to fraction form
   81,253.20/112,131.84 = 45,444.72/x
3. Step 3: Cross multiply
   81,253.20x = 112,131.84 × 45,444.72
4. Step 4: Simplify right side
   81,253.20x = 5,095,800,071.88
5. Step 5: Solve for x
   x = 5,095,800,071.88/81,253.20
6. Step 6: Final answer
   x = 62,715.07