Finding the Fourth Proportional to 10,590.40, 14,581.52 and 8,993.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,590.40 : 14,581.52 = 8,993.72 : x
2. Step 2: Convert to fraction form
   10,590.40/14,581.52 = 8,993.72/x
3. Step 3: Cross multiply
   10,590.40x = 14,581.52 × 8,993.72
4. Step 4: Simplify right side
   10,590.40x = 131,142,108.05
5. Step 5: Solve for x
   x = 131,142,108.05/10,590.40
6. Step 6: Final answer
   x = 12,383.11