Finding the Fourth Proportional to 5,131.98, 7,082.91 and 3,036.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131.98 : 7,082.91 = 3,036.78 : x
2. Step 2: Convert to fraction form
   5,131.98/7,082.91 = 3,036.78/x
3. Step 3: Cross multiply
   5,131.98x = 7,082.91 × 3,036.78
4. Step 4: Simplify right side
   5,131.98x = 21,509,239.43
5. Step 5: Solve for x
   x = 21,509,239.43/5,131.98
6. Step 6: Final answer
   x = 4,191.22