Finding the Fourth Proportional to 16,196.61, 24,252.78 and 15,211.53

Step by Step Solution

1. Step 1: Write the proportion equation
   16,196.61 : 24,252.78 = 15,211.53 : x
2. Step 2: Convert to fraction form
   16,196.61/24,252.78 = 15,211.53/x
3. Step 3: Cross multiply
   16,196.61x = 24,252.78 × 15,211.53
4. Step 4: Simplify right side
   16,196.61x = 368,921,890.55
5. Step 5: Solve for x
   x = 368,921,890.55/16,196.61
6. Step 6: Final answer
   x = 22,777.72