Finding the Fourth Proportional to 15,552.69, 21,461.98 and 8,838.15

Step by Step Solution

1. Step 1: Write the proportion equation
   15,552.69 : 21,461.98 = 8,838.15 : x
2. Step 2: Convert to fraction form
   15,552.69/21,461.98 = 8,838.15/x
3. Step 3: Cross multiply
   15,552.69x = 21,461.98 × 8,838.15
4. Step 4: Simplify right side
   15,552.69x = 189,684,198.54
5. Step 5: Solve for x
   x = 189,684,198.54/15,552.69
6. Step 6: Final answer
   x = 12,196.23