Finding the Fourth Proportional to 5,920.24, 8,167.16 and 3,931.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,920.24 : 8,167.16 = 3,931.76 : x
2. Step 2: Convert to fraction form
   5,920.24/8,167.16 = 3,931.76/x
3. Step 3: Cross multiply
   5,920.24x = 8,167.16 × 3,931.76
4. Step 4: Simplify right side
   5,920.24x = 32,111,313.00
5. Step 5: Solve for x
   x = 32,111,313.00/5,920.24
6. Step 6: Final answer
   x = 5,423.99