Finding the Fourth Proportional to 9,576.38, 13,215.47 and 5,384.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,576.38 : 13,215.47 = 5,384.63 : x
2. Step 2: Convert to fraction form
   9,576.38/13,215.47 = 5,384.63/x
3. Step 3: Cross multiply
   9,576.38x = 13,215.47 × 5,384.63
4. Step 4: Simplify right side
   9,576.38x = 71,160,323.23
5. Step 5: Solve for x
   x = 71,160,323.23/9,576.38
6. Step 6: Final answer
   x = 7,430.82