Finding the Fourth Proportional to 8,770.48, 13,155.29 and 3,223.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,770.48 : 13,155.29 = 3,223.40 : x
2. Step 2: Convert to fraction form
   8,770.48/13,155.29 = 3,223.40/x
3. Step 3: Cross multiply
   8,770.48x = 13,155.29 × 3,223.40
4. Step 4: Simplify right side
   8,770.48x = 42,404,691.98
5. Step 5: Solve for x
   x = 42,404,691.98/8,770.48
6. Step 6: Final answer
   x = 4,834.94