Finding the Fourth Proportional to 31,093.88, 42,909.55 and 16,946.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,093.88 : 42,909.55 = 16,946.75 : x
2. Step 2: Convert to fraction form
   31,093.88/42,909.55 = 16,946.75/x
3. Step 3: Cross multiply
   31,093.88x = 42,909.55 × 16,946.75
4. Step 4: Simplify right side
   31,093.88x = 727,177,481.37
5. Step 5: Solve for x
   x = 727,177,481.37/31,093.88
6. Step 6: Final answer
   x = 23,386.52