Finding the Fourth Proportional to 31,120.83, 42,950.38 and 17,694.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,120.83 : 42,950.38 = 17,694.10 : x
2. Step 2: Convert to fraction form
   31,120.83/42,950.38 = 17,694.10/x
3. Step 3: Cross multiply
   31,120.83x = 42,950.38 × 17,694.10
4. Step 4: Simplify right side
   31,120.83x = 759,968,318.76
5. Step 5: Solve for x
   x = 759,968,318.76/31,120.83
6. Step 6: Final answer
   x = 24,419.92