Finding the Fourth Proportional to 9,825.15, 13,558.26 and 5,348.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,825.15 : 13,558.26 = 5,348.79 : x
2. Step 2: Convert to fraction form
   9,825.15/13,558.26 = 5,348.79/x
3. Step 3: Cross multiply
   9,825.15x = 13,558.26 × 5,348.79
4. Step 4: Simplify right side
   9,825.15x = 72,520,285.51
5. Step 5: Solve for x
   x = 72,520,285.51/9,825.15
6. Step 6: Final answer
   x = 7,381.09