Finding the Fourth Proportional to 81,662.90, 112,687.89 and 45,850.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,662.90 : 112,687.89 = 45,850.10 : x
2. Step 2: Convert to fraction form
   81,662.90/112,687.89 = 45,850.10/x
3. Step 3: Cross multiply
   81,662.90x = 112,687.89 × 45,850.10
4. Step 4: Simplify right side
   81,662.90x = 5,166,751,025.29
5. Step 5: Solve for x
   x = 5,166,751,025.29/81,662.90
6. Step 6: Final answer
   x = 63,269.26