Finding the Fourth Proportional to 10,115.79, 15,167.71 and 3,876.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,115.79 : 15,167.71 = 3,876.27 : x
2. Step 2: Convert to fraction form
   10,115.79/15,167.71 = 3,876.27/x
3. Step 3: Cross multiply
   10,115.79x = 15,167.71 × 3,876.27
4. Step 4: Simplify right side
   10,115.79x = 58,794,139.24
5. Step 5: Solve for x
   x = 58,794,139.24/10,115.79
6. Step 6: Final answer
   x = 5,812.12