Finding the Fourth Proportional to 6,142.04, 8,478.91 and 4,155.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,142.04 : 8,478.91 = 4,155.82 : x
2. Step 2: Convert to fraction form
   6,142.04/8,478.91 = 4,155.82/x
3. Step 3: Cross multiply
   6,142.04x = 8,478.91 × 4,155.82
4. Step 4: Simplify right side
   6,142.04x = 35,236,807.75
5. Step 5: Solve for x
   x = 35,236,807.75/6,142.04
6. Step 6: Final answer
   x = 5,736.99