Finding the Fourth Proportional to 5,690.79, 8,522.32 and 3,931.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,690.79 : 8,522.32 = 3,931.10 : x
2. Step 2: Convert to fraction form
   5,690.79/8,522.32 = 3,931.10/x
3. Step 3: Cross multiply
   5,690.79x = 8,522.32 × 3,931.10
4. Step 4: Simplify right side
   5,690.79x = 33,502,049.54
5. Step 5: Solve for x
   x = 33,502,049.54/5,690.79
6. Step 6: Final answer
   x = 5,887.07