Finding the Fourth Proportional to 8,899.86, 13,352.94 and 3,969.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,899.86 : 13,352.94 = 3,969.06 : x
2. Step 2: Convert to fraction form
   8,899.86/13,352.94 = 3,969.06/x
3. Step 3: Cross multiply
   8,899.86x = 13,352.94 × 3,969.06
4. Step 4: Simplify right side
   8,899.86x = 52,998,620.04
5. Step 5: Solve for x
   x = 52,998,620.04/8,899.86
6. Step 6: Final answer
   x = 5,954.99