Finding the Fourth Proportional to 31,105.39, 42,924.19 and 16,957.93

Step by Step Solution

1. Step 1: Write the proportion equation
   31,105.39 : 42,924.19 = 16,957.93 : x
2. Step 2: Convert to fraction form
   31,105.39/42,924.19 = 16,957.93/x
3. Step 3: Cross multiply
   31,105.39x = 42,924.19 × 16,957.93
4. Step 4: Simplify right side
   31,105.39x = 727,905,409.33
5. Step 5: Solve for x
   x = 727,905,409.33/31,105.39
6. Step 6: Final answer
   x = 23,401.26