Finding the Fourth Proportional to 12,174.47, 18,247.87 and 5,150.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,174.47 : 18,247.87 = 5,150.10 : x
2. Step 2: Convert to fraction form
   12,174.47/18,247.87 = 5,150.10/x
3. Step 3: Cross multiply
   12,174.47x = 18,247.87 × 5,150.10
4. Step 4: Simplify right side
   12,174.47x = 93,978,349.86
5. Step 5: Solve for x
   x = 93,978,349.86/12,174.47
6. Step 6: Final answer
   x = 7,719.30