Finding the Fourth Proportional to 113,658.12, 170,298.72 and 69,150.24

Step by Step Solution

1. Step 1: Write the proportion equation
   113,658.12 : 170,298.72 = 69,150.24 : x
2. Step 2: Convert to fraction form
   113,658.12/170,298.72 = 69,150.24/x
3. Step 3: Cross multiply
   113,658.12x = 170,298.72 × 69,150.24
4. Step 4: Simplify right side
   113,658.12x = 11,776,197,359.69
5. Step 5: Solve for x
   x = 11,776,197,359.69/113,658.12
6. Step 6: Final answer
   x = 103,610.70