Finding the Fourth Proportional to 12,174.75, 18,248.29 and 5,150.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,174.75 : 18,248.29 = 5,150.38 : x
2. Step 2: Convert to fraction form
   12,174.75/18,248.29 = 5,150.38/x
3. Step 3: Cross multiply
   12,174.75x = 18,248.29 × 5,150.38
4. Step 4: Simplify right side
   12,174.75x = 93,985,654.89
5. Step 5: Solve for x
   x = 93,985,654.89/12,174.75
6. Step 6: Final answer
   x = 7,719.72