Finding the Fourth Proportional to 80,929.48, 111,682.76 and 45,118.78

Step by Step Solution

1. Step 1: Write the proportion equation
   80,929.48 : 111,682.76 = 45,118.78 : x
2. Step 2: Convert to fraction form
   80,929.48/111,682.76 = 45,118.78/x
3. Step 3: Cross multiply
   80,929.48x = 111,682.76 × 45,118.78
4. Step 4: Simplify right side
   80,929.48x = 5,038,989,878.23
5. Step 5: Solve for x
   x = 5,038,989,878.23/80,929.48
6. Step 6: Final answer
   x = 62,263.96