Finding the Fourth Proportional to 5,873.57, 8,105.90 and 3,880.63

Step by Step Solution

1. Step 1: Write the proportion equation
   5,873.57 : 8,105.90 = 3,880.63 : x
2. Step 2: Convert to fraction form
   5,873.57/8,105.90 = 3,880.63/x
3. Step 3: Cross multiply
   5,873.57x = 8,105.90 × 3,880.63
4. Step 4: Simplify right side
   5,873.57x = 31,455,998.72
5. Step 5: Solve for x
   x = 31,455,998.72/5,873.57
6. Step 6: Final answer
   x = 5,355.52