Finding the Fourth Proportional to 12,168.52, 18,258.30 and 5,150.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,168.52 : 18,258.30 = 5,150.44 : x
2. Step 2: Convert to fraction form
   12,168.52/18,258.30 = 5,150.44/x
3. Step 3: Cross multiply
   12,168.52x = 18,258.30 × 5,150.44
4. Step 4: Simplify right side
   12,168.52x = 94,038,278.65
5. Step 5: Solve for x
   x = 94,038,278.65/12,168.52
6. Step 6: Final answer
   x = 7,728.00