Finding the Fourth Proportional to 5,891.00, 8,123.55 and 3,900.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,891.00 : 8,123.55 = 3,900.83 : x
2. Step 2: Convert to fraction form
   5,891.00/8,123.55 = 3,900.83/x
3. Step 3: Cross multiply
   5,891.00x = 8,123.55 × 3,900.83
4. Step 4: Simplify right side
   5,891.00x = 31,688,582.27
5. Step 5: Solve for x
   x = 31,688,582.27/5,891.00
6. Step 6: Final answer
   x = 5,379.15