Finding the Fourth Proportional to 31,093.92, 42,909.42 and 16,946.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,093.92 : 42,909.42 = 16,946.76 : x
2. Step 2: Convert to fraction form
   31,093.92/42,909.42 = 16,946.76/x
3. Step 3: Cross multiply
   31,093.92x = 42,909.42 × 16,946.76
4. Step 4: Simplify right side
   31,093.92x = 727,175,642.48
5. Step 5: Solve for x
   x = 727,175,642.48/31,093.92
6. Step 6: Final answer
   x = 23,386.43