Finding the Fourth Proportional to 111,178.27, 153,423.18 and 62,120.29

Step by Step Solution

1. Step 1: Write the proportion equation
   111,178.27 : 153,423.18 = 62,120.29 : x
2. Step 2: Convert to fraction form
   111,178.27/153,423.18 = 62,120.29/x
3. Step 3: Cross multiply
   111,178.27x = 153,423.18 × 62,120.29
4. Step 4: Simplify right side
   111,178.27x = 9,530,692,434.32
5. Step 5: Solve for x
   x = 9,530,692,434.32/111,178.27
6. Step 6: Final answer
   x = 85,724.42