Finding the Fourth Proportional to 12,613.62, 18,915.78 and 5,496.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.62 : 18,915.78 = 5,496.98 : x
2. Step 2: Convert to fraction form
   12,613.62/18,915.78 = 5,496.98/x
3. Step 3: Cross multiply
   12,613.62x = 18,915.78 × 5,496.98
4. Step 4: Simplify right side
   12,613.62x = 103,979,664.34
5. Step 5: Solve for x
   x = 103,979,664.34/12,613.62
6. Step 6: Final answer
   x = 8,243.44