Finding the Fourth Proportional to 81,118.62, 111,932.62 and 45,304.06

Step by Step Solution

1. Step 1: Write the proportion equation
   81,118.62 : 111,932.62 = 45,304.06 : x
2. Step 2: Convert to fraction form
   81,118.62/111,932.62 = 45,304.06/x
3. Step 3: Cross multiply
   81,118.62x = 111,932.62 × 45,304.06
4. Step 4: Simplify right side
   81,118.62x = 5,071,002,132.44
5. Step 5: Solve for x
   x = 5,071,002,132.44/81,118.62
6. Step 6: Final answer
   x = 62,513.42