Finding the Fourth Proportional to 81,500.76, 112,473.41 and 45,691.38

Step by Step Solution

1. Step 1: Write the proportion equation
   81,500.76 : 112,473.41 = 45,691.38 : x
2. Step 2: Convert to fraction form
   81,500.76/112,473.41 = 45,691.38/x
3. Step 3: Cross multiply
   81,500.76x = 112,473.41 × 45,691.38
4. Step 4: Simplify right side
   81,500.76x = 5,139,065,087.75
5. Step 5: Solve for x
   x = 5,139,065,087.75/81,500.76
6. Step 6: Final answer
   x = 63,055.43