Finding the Fourth Proportional to 9,641.73, 13,305.39 and 5,392.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,641.73 : 13,305.39 = 5,392.86 : x
2. Step 2: Convert to fraction form
   9,641.73/13,305.39 = 5,392.86/x
3. Step 3: Cross multiply
   9,641.73x = 13,305.39 × 5,392.86
4. Step 4: Simplify right side
   9,641.73x = 71,754,105.52
5. Step 5: Solve for x
   x = 71,754,105.52/9,641.73
6. Step 6: Final answer
   x = 7,442.04