Finding the Fourth Proportional to 12,308.76, 18,466.25 and 3,543.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308.76 : 18,466.25 = 3,543.68 : x
2. Step 2: Convert to fraction form
   12,308.76/18,466.25 = 3,543.68/x
3. Step 3: Cross multiply
   12,308.76x = 18,466.25 × 3,543.68
4. Step 4: Simplify right side
   12,308.76x = 65,438,480.80
5. Step 5: Solve for x
   x = 65,438,480.80/12,308.76
6. Step 6: Final answer
   x = 5,316.42