Finding the Fourth Proportional to 111,921.10, 168,076.05 and 59,433.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,921.10 : 168,076.05 = 59,433.10 : x
2. Step 2: Convert to fraction form
   111,921.10/168,076.05 = 59,433.10/x
3. Step 3: Cross multiply
   111,921.10x = 168,076.05 × 59,433.10
4. Step 4: Simplify right side
   111,921.10x = 9,989,280,687.26
5. Step 5: Solve for x
   x = 9,989,280,687.26/111,921.10
6. Step 6: Final answer
   x = 89,252.88