Finding the Fourth Proportional to 9,580.46, 13,222.88 and 5,388.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,580.46 : 13,222.88 = 5,388.71 : x
2. Step 2: Convert to fraction form
   9,580.46/13,222.88 = 5,388.71/x
3. Step 3: Cross multiply
   9,580.46x = 13,222.88 × 5,388.71
4. Step 4: Simplify right side
   9,580.46x = 71,254,345.73
5. Step 5: Solve for x
   x = 71,254,345.73/9,580.46
6. Step 6: Final answer
   x = 7,437.46