Finding the Fourth Proportional to 31,095.27, 42,909.89 and 16,947.99

Step by Step Solution

1. Step 1: Write the proportion equation
   31,095.27 : 42,909.89 = 16,947.99 : x
2. Step 2: Convert to fraction form
   31,095.27/42,909.89 = 16,947.99/x
3. Step 3: Cross multiply
   31,095.27x = 42,909.89 × 16,947.99
4. Step 4: Simplify right side
   31,095.27x = 727,236,301.88
5. Step 5: Solve for x
   x = 727,236,301.88/31,095.27
6. Step 6: Final answer
   x = 23,387.36