Finding the Fourth Proportional to 16,520.04, 22,806.54 and 12,734.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,520.04 : 22,806.54 = 12,734.91 : x
2. Step 2: Convert to fraction form
   16,520.04/22,806.54 = 12,734.91/x
3. Step 3: Cross multiply
   16,520.04x = 22,806.54 × 12,734.91
4. Step 4: Simplify right side
   16,520.04x = 290,439,234.31
5. Step 5: Solve for x
   x = 290,439,234.31/16,520.04
6. Step 6: Final answer
   x = 17,581.02