Finding the Fourth Proportional to 31,104.32, 42,924.52 and 16,957.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,104.32 : 42,924.52 = 16,957.76 : x
2. Step 2: Convert to fraction form
   31,104.32/42,924.52 = 16,957.76/x
3. Step 3: Cross multiply
   31,104.32x = 42,924.52 × 16,957.76
4. Step 4: Simplify right side
   31,104.32x = 727,903,708.28
5. Step 5: Solve for x
   x = 727,903,708.28/31,104.32
6. Step 6: Final answer
   x = 23,402.01