Finding the Fourth Proportional to 81,080.48, 111,895.98 and 45,270.38

Step by Step Solution

1. Step 1: Write the proportion equation
   81,080.48 : 111,895.98 = 45,270.38 : x
2. Step 2: Convert to fraction form
   81,080.48/111,895.98 = 45,270.38/x
3. Step 3: Cross multiply
   81,080.48x = 111,895.98 × 45,270.38
4. Step 4: Simplify right side
   81,080.48x = 5,065,573,535.07
5. Step 5: Solve for x
   x = 5,065,573,535.07/81,080.48
6. Step 6: Final answer
   x = 62,475.87