Finding the Fourth Proportional to 5,861.16, 8,091.70 and 3,877.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,861.16 : 8,091.70 = 3,877.47 : x
2. Step 2: Convert to fraction form
   5,861.16/8,091.70 = 3,877.47/x
3. Step 3: Cross multiply
   5,861.16x = 8,091.70 × 3,877.47
4. Step 4: Simplify right side
   5,861.16x = 31,375,314.31
5. Step 5: Solve for x
   x = 31,375,314.31/5,861.16
6. Step 6: Final answer
   x = 5,353.09