Finding the Fourth Proportional to 6,837.72, 9,436.17 and 4,007.13

Step by Step Solution

1. Step 1: Write the proportion equation
   6,837.72 : 9,436.17 = 4,007.13 : x
2. Step 2: Convert to fraction form
   6,837.72/9,436.17 = 4,007.13/x
3. Step 3: Cross multiply
   6,837.72x = 9,436.17 × 4,007.13
4. Step 4: Simplify right side
   6,837.72x = 37,811,959.89
5. Step 5: Solve for x
   x = 37,811,959.89/6,837.72
6. Step 6: Final answer
   x = 5,529.91