Finding the Fourth Proportional to 11,218.82, 15,488.27 and 8,824.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,218.82 : 15,488.27 = 8,824.05 : x
2. Step 2: Convert to fraction form
   11,218.82/15,488.27 = 8,824.05/x
3. Step 3: Cross multiply
   11,218.82x = 15,488.27 × 8,824.05
4. Step 4: Simplify right side
   11,218.82x = 136,669,224.77
5. Step 5: Solve for x
   x = 136,669,224.77/11,218.82
6. Step 6: Final answer
   x = 12,182.14