Finding the Fourth Proportional to 6,403.86, 8,834.27 and 3,715.07

Step by Step Solution

1. Step 1: Write the proportion equation
   6,403.86 : 8,834.27 = 3,715.07 : x
2. Step 2: Convert to fraction form
   6,403.86/8,834.27 = 3,715.07/x
3. Step 3: Cross multiply
   6,403.86x = 8,834.27 × 3,715.07
4. Step 4: Simplify right side
   6,403.86x = 32,819,868.70
5. Step 5: Solve for x
   x = 32,819,868.70/6,403.86
6. Step 6: Final answer
   x = 5,125.01