Finding the Fourth Proportional to 81,517.50, 112,499.92 and 45,230.82

Step by Step Solution

1. Step 1: Write the proportion equation
   81,517.50 : 112,499.92 = 45,230.82 : x
2. Step 2: Convert to fraction form
   81,517.50/112,499.92 = 45,230.82/x
3. Step 3: Cross multiply
   81,517.50x = 112,499.92 × 45,230.82
4. Step 4: Simplify right side
   81,517.50x = 5,088,463,631.53
5. Step 5: Solve for x
   x = 5,088,463,631.53/81,517.50
6. Step 6: Final answer
   x = 62,421.73