Finding the Fourth Proportional to 31,832.96, 43,931.04 and 17,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,832.96 : 43,931.04 = 17,685.50 : x
2. Step 2: Convert to fraction form
   31,832.96/43,931.04 = 17,685.50/x
3. Step 3: Cross multiply
   31,832.96x = 43,931.04 × 17,685.50
4. Step 4: Simplify right side
   31,832.96x = 776,942,407.92
5. Step 5: Solve for x
   x = 776,942,407.92/31,832.96
6. Step 6: Final answer
   x = 24,406.85