Finding the Fourth Proportional to 80,921.16, 111,665.52 and 45,113.16

Step by Step Solution

1. Step 1: Write the proportion equation
   80,921.16 : 111,665.52 = 45,113.16 : x
2. Step 2: Convert to fraction form
   80,921.16/111,665.52 = 45,113.16/x
3. Step 3: Cross multiply
   80,921.16x = 111,665.52 × 45,113.16
4. Step 4: Simplify right side
   80,921.16x = 5,037,584,470.24
5. Step 5: Solve for x
   x = 5,037,584,470.24/80,921.16
6. Step 6: Final answer
   x = 62,252.99