Finding the Fourth Proportional to 5,886.08, 8,118.06 and 5,176.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,886.08 : 8,118.06 = 5,176.40 : x
2. Step 2: Convert to fraction form
   5,886.08/8,118.06 = 5,176.40/x
3. Step 3: Cross multiply
   5,886.08x = 8,118.06 × 5,176.40
4. Step 4: Simplify right side
   5,886.08x = 42,022,325.78
5. Step 5: Solve for x
   x = 42,022,325.78/5,886.08
6. Step 6: Final answer
   x = 7,139.27