Finding the Fourth Proportional to 5,876.78, 8,109.91 and 3,188.00

Step by Step Solution

1. Step 1: Write the proportion equation
   5,876.78 : 8,109.91 = 3,188.00 : x
2. Step 2: Convert to fraction form
   5,876.78/8,109.91 = 3,188.00/x
3. Step 3: Cross multiply
   5,876.78x = 8,109.91 × 3,188.00
4. Step 4: Simplify right side
   5,876.78x = 25,854,355.83
5. Step 5: Solve for x
   x = 25,854,355.83/5,876.78
6. Step 6: Final answer
   x = 4,399.41