Finding the Fourth Proportional to 5,959.42, 8,216.18 and 5,129.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,959.42 : 8,216.18 = 5,129.04 : x
2. Step 2: Convert to fraction form
   5,959.42/8,216.18 = 5,129.04/x
3. Step 3: Cross multiply
   5,959.42x = 8,216.18 × 5,129.04
4. Step 4: Simplify right side
   5,959.42x = 42,141,049.14
5. Step 5: Solve for x
   x = 42,141,049.14/5,959.42
6. Step 6: Final answer
   x = 7,071.33