Finding the Fourth Proportional to 14,799.31, 20,423.49 and 8,085.37

Step by Step Solution

1. Step 1: Write the proportion equation
   14,799.31 : 20,423.49 = 8,085.37 : x
2. Step 2: Convert to fraction form
   14,799.31/20,423.49 = 8,085.37/x
3. Step 3: Cross multiply
   14,799.31x = 20,423.49 × 8,085.37
4. Step 4: Simplify right side
   14,799.31x = 165,131,452.60
5. Step 5: Solve for x
   x = 165,131,452.60/14,799.31
6. Step 6: Final answer
   x = 11,158.05