Finding the Fourth Proportional to 9,630.67, 13,290.18 and 5,381.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,630.67 : 13,290.18 = 5,381.83 : x
2. Step 2: Convert to fraction form
   9,630.67/13,290.18 = 5,381.83/x
3. Step 3: Cross multiply
   9,630.67x = 13,290.18 × 5,381.83
4. Step 4: Simplify right side
   9,630.67x = 71,525,489.43
5. Step 5: Solve for x
   x = 71,525,489.43/9,630.67
6. Step 6: Final answer
   x = 7,426.84