Finding the Fourth Proportional to 9,574.38, 13,211.20 and 5,381.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,574.38 : 13,211.20 = 5,381.82 : x
2. Step 2: Convert to fraction form
   9,574.38/13,211.20 = 5,381.82/x
3. Step 3: Cross multiply
   9,574.38x = 13,211.20 × 5,381.82
4. Step 4: Simplify right side
   9,574.38x = 71,100,300.38
5. Step 5: Solve for x
   x = 71,100,300.38/9,574.38
6. Step 6: Final answer
   x = 7,426.10