Finding the Fourth Proportional to 9,630.06, 13,289.37 and 5,380.85

Step by Step Solution

1. Step 1: Write the proportion equation
   9,630.06 : 13,289.37 = 5,380.85 : x
2. Step 2: Convert to fraction form
   9,630.06/13,289.37 = 5,380.85/x
3. Step 3: Cross multiply
   9,630.06x = 13,289.37 × 5,380.85
4. Step 4: Simplify right side
   9,630.06x = 71,508,106.56
5. Step 5: Solve for x
   x = 71,508,106.56/9,630.06
6. Step 6: Final answer
   x = 7,425.51