Finding the Fourth Proportional to 240,826.10, 361,225.24 and 72,342.72

Step by Step Solution

1. Step 1: Write the proportion equation
   240,826.10 : 361,225.24 = 72,342.72 : x
2. Step 2: Convert to fraction form
   240,826.10/361,225.24 = 72,342.72/x
3. Step 3: Cross multiply
   240,826.10x = 361,225.24 × 72,342.72
4. Step 4: Simplify right side
   240,826.10x = 26,132,016,213.40
5. Step 5: Solve for x
   x = 26,132,016,213.40/240,826.10
6. Step 6: Final answer
   x = 108,509.90