Finding the Fourth Proportional to 16,085.86, 22,208.85 and 13,108.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,085.86 : 22,208.85 = 13,108.82 : x
2. Step 2: Convert to fraction form
   16,085.86/22,208.85 = 13,108.82/x
3. Step 3: Cross multiply
   16,085.86x = 22,208.85 × 13,108.82
4. Step 4: Simplify right side
   16,085.86x = 291,131,706.01
5. Step 5: Solve for x
   x = 291,131,706.01/16,085.86
6. Step 6: Final answer
   x = 18,098.61