Finding the Fourth Proportional to 111,062.10, 166,617.45 and 54,929.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,062.10 : 166,617.45 = 54,929.10 : x
2. Step 2: Convert to fraction form
   111,062.10/166,617.45 = 54,929.10/x
3. Step 3: Cross multiply
   111,062.10x = 166,617.45 × 54,929.10
4. Step 4: Simplify right side
   111,062.10x = 9,152,146,572.80
5. Step 5: Solve for x
   x = 9,152,146,572.80/111,062.10
6. Step 6: Final answer
   x = 82,405.67