Finding the Fourth Proportional to 5,810.61, 8,018.31 and 3,158.00

Step by Step Solution

1. Step 1: Write the proportion equation
   5,810.61 : 8,018.31 = 3,158.00 : x
2. Step 2: Convert to fraction form
   5,810.61/8,018.31 = 3,158.00/x
3. Step 3: Cross multiply
   5,810.61x = 8,018.31 × 3,158.00
4. Step 4: Simplify right side
   5,810.61x = 25,321,824.80
5. Step 5: Solve for x
   x = 25,321,824.80/5,810.61
6. Step 6: Final answer
   x = 4,357.86