Finding the Fourth Proportional to 111,240.10, 153,468.96 and 82,238.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,240.10 : 153,468.96 = 82,238.10 : x
2. Step 2: Convert to fraction form
   111,240.10/153,468.96 = 82,238.10/x
3. Step 3: Cross multiply
   111,240.10x = 153,468.96 × 82,238.10
4. Step 4: Simplify right side
   111,240.10x = 12,620,996,254.88
5. Step 5: Solve for x
   x = 12,620,996,254.88/111,240.10
6. Step 6: Final answer
   x = 113,457.26