Finding the Fourth Proportional to 109,530.30, 151,140.54 and 80,865.24

Step by Step Solution

1. Step 1: Write the proportion equation
   109,530.30 : 151,140.54 = 80,865.24 : x
2. Step 2: Convert to fraction form
   109,530.30/151,140.54 = 80,865.24/x
3. Step 3: Cross multiply
   109,530.30x = 151,140.54 × 80,865.24
4. Step 4: Simplify right side
   109,530.30x = 12,222,016,040.83
5. Step 5: Solve for x
   x = 12,222,016,040.83/109,530.30
6. Step 6: Final answer
   x = 111,585.71