Finding the Fourth Proportional to 12,363.82, 18,540.18 and 7,368.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,363.82 : 18,540.18 = 7,368.55 : x
2. Step 2: Convert to fraction form
   12,363.82/18,540.18 = 7,368.55/x
3. Step 3: Cross multiply
   12,363.82x = 18,540.18 × 7,368.55
4. Step 4: Simplify right side
   12,363.82x = 136,614,150.64
5. Step 5: Solve for x
   x = 136,614,150.64/12,363.82
6. Step 6: Final answer
   x = 11,049.51