Finding the Fourth Proportional to 31,109.88, 42,932.52 and 16,963.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,109.88 : 42,932.52 = 16,963.50 : x
2. Step 2: Convert to fraction form
   31,109.88/42,932.52 = 16,963.50/x
3. Step 3: Cross multiply
   31,109.88x = 42,932.52 × 16,963.50
4. Step 4: Simplify right side
   31,109.88x = 728,285,803.02
5. Step 5: Solve for x
   x = 728,285,803.02/31,109.88
6. Step 6: Final answer
   x = 23,410.11