Finding the Fourth Proportional to 31,070.88, 42,877.88 and 16,923.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,070.88 : 42,877.88 = 16,923.68 : x
2. Step 2: Convert to fraction form
   31,070.88/42,877.88 = 16,923.68/x
3. Step 3: Cross multiply
   31,070.88x = 42,877.88 × 16,923.68
4. Step 4: Simplify right side
   31,070.88x = 725,651,520.20
5. Step 5: Solve for x
   x = 725,651,520.20/31,070.88
6. Step 6: Final answer
   x = 23,354.71