Finding the Fourth Proportional to 9,641.55, 13,305.51 and 5,392.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,641.55 : 13,305.51 = 5,392.71 : x
2. Step 2: Convert to fraction form
   9,641.55/13,305.51 = 5,392.71/x
3. Step 3: Cross multiply
   9,641.55x = 13,305.51 × 5,392.71
4. Step 4: Simplify right side
   9,641.55x = 71,752,756.83
5. Step 5: Solve for x
   x = 71,752,756.83/9,641.55
6. Step 6: Final answer
   x = 7,442.04