Finding the Fourth Proportional to 6,385.89, 8,812.39 and 3,697.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,385.89 : 8,812.39 = 3,697.22 : x
2. Step 2: Convert to fraction form
   6,385.89/8,812.39 = 3,697.22/x
3. Step 3: Cross multiply
   6,385.89x = 8,812.39 × 3,697.22
4. Step 4: Simplify right side
   6,385.89x = 32,581,326.07
5. Step 5: Solve for x
   x = 32,581,326.07/6,385.89
6. Step 6: Final answer
   x = 5,102.08