Finding the Fourth Proportional to 5,587.79, 8,365.28 and 3,916.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,587.79 : 8,365.28 = 3,916.10 : x
2. Step 2: Convert to fraction form
   5,587.79/8,365.28 = 3,916.10/x
3. Step 3: Cross multiply
   5,587.79x = 8,365.28 × 3,916.10
4. Step 4: Simplify right side
   5,587.79x = 32,759,227.29
5. Step 5: Solve for x
   x = 32,759,227.29/5,587.79
6. Step 6: Final answer
   x = 5,862.65