Finding the Fourth Proportional to 6,465.99, 8,920.73 and 4,229.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,465.99 : 8,920.73 = 4,229.15 : x
2. Step 2: Convert to fraction form
   6,465.99/8,920.73 = 4,229.15/x
3. Step 3: Cross multiply
   6,465.99x = 8,920.73 × 4,229.15
4. Step 4: Simplify right side
   6,465.99x = 37,727,071.25
5. Step 5: Solve for x
   x = 37,727,071.25/6,465.99
6. Step 6: Final answer
   x = 5,834.69