Finding the Fourth Proportional to 31,093.50, 42,909.12 and 16,946.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,093.50 : 42,909.12 = 16,946.04 : x
2. Step 2: Convert to fraction form
   31,093.50/42,909.12 = 16,946.04/x
3. Step 3: Cross multiply
   31,093.50x = 42,909.12 × 16,946.04
4. Step 4: Simplify right side
   31,093.50x = 727,139,663.88
5. Step 5: Solve for x
   x = 727,139,663.88/31,093.50
6. Step 6: Final answer
   x = 23,385.58