Finding the Fourth Proportional to 12,308.60, 18,456.38 and 5,375

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308.60 : 18,456.38 = 5,375 : x
2. Step 2: Convert to fraction form
   12,308.60/18,456.38 = 5,375/x
3. Step 3: Cross multiply
   12,308.60x = 18,456.38 × 5,375
4. Step 4: Simplify right side
   12,308.60x = 99,203,042.50
5. Step 5: Solve for x
   x = 99,203,042.50/12,308.60
6. Step 6: Final answer
   x = 8,059.65