Finding the Fourth Proportional to 5,665.83, 8,498.74 and 2,155.01

Step by Step Solution

1. Step 1: Write the proportion equation
   5,665.83 : 8,498.74 = 2,155.01 : x
2. Step 2: Convert to fraction form
   5,665.83/8,498.74 = 2,155.01/x
3. Step 3: Cross multiply
   5,665.83x = 8,498.74 × 2,155.01
4. Step 4: Simplify right side
   5,665.83x = 18,314,825.85
5. Step 5: Solve for x
   x = 18,314,825.85/5,665.83
6. Step 6: Final answer
   x = 3,232.50