Finding the Fourth Proportional to 81,086.62, 111,899.49 and 45,276.61

Step by Step Solution

1. Step 1: Write the proportion equation
   81,086.62 : 111,899.49 = 45,276.61 : x
2. Step 2: Convert to fraction form
   81,086.62/111,899.49 = 45,276.61/x
3. Step 3: Cross multiply
   81,086.62x = 111,899.49 × 45,276.61
4. Step 4: Simplify right side
   81,086.62x = 5,066,429,567.93
5. Step 5: Solve for x
   x = 5,066,429,567.93/81,086.62
6. Step 6: Final answer
   x = 62,481.70