Finding the Fourth Proportional to 6,141.59, 8,477.21 and 5,311.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,141.59 : 8,477.21 = 5,311.22 : x
2. Step 2: Convert to fraction form
   6,141.59/8,477.21 = 5,311.22/x
3. Step 3: Cross multiply
   6,141.59x = 8,477.21 × 5,311.22
4. Step 4: Simplify right side
   6,141.59x = 45,024,327.30
5. Step 5: Solve for x
   x = 45,024,327.30/6,141.59
6. Step 6: Final answer
   x = 7,331.05