Finding the Fourth Proportional to 69,321.24, 103,899.42 and 31,849.56

Step by Step Solution

1. Step 1: Write the proportion equation
   69,321.24 : 103,899.42 = 31,849.56 : x
2. Step 2: Convert to fraction form
   69,321.24/103,899.42 = 31,849.56/x
3. Step 3: Cross multiply
   69,321.24x = 103,899.42 × 31,849.56
4. Step 4: Simplify right side
   69,321.24x = 3,309,150,811.26
5. Step 5: Solve for x
   x = 3,309,150,811.26/69,321.24
6. Step 6: Final answer
   x = 47,736.46