Finding the Fourth Proportional to 81,078.42, 111,887.16 and 45,269.04

Step by Step Solution

1. Step 1: Write the proportion equation
   81,078.42 : 111,887.16 = 45,269.04 : x
2. Step 2: Convert to fraction form
   81,078.42/111,887.16 = 45,269.04/x
3. Step 3: Cross multiply
   81,078.42x = 111,887.16 × 45,269.04
4. Step 4: Simplify right side
   81,078.42x = 5,065,024,321.53
5. Step 5: Solve for x
   x = 5,065,024,321.53/81,078.42
6. Step 6: Final answer
   x = 62,470.68