Finding the Fourth Proportional to 11,238.32, 16,879.35 and 9,159.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,238.32 : 16,879.35 = 9,159.86 : x
2. Step 2: Convert to fraction form
   11,238.32/16,879.35 = 9,159.86/x
3. Step 3: Cross multiply
   11,238.32x = 16,879.35 × 9,159.86
4. Step 4: Simplify right side
   11,238.32x = 154,612,482.89
5. Step 5: Solve for x
   x = 154,612,482.89/11,238.32
6. Step 6: Final answer
   x = 13,757.62