Finding the Fourth Proportional to 9,858.24, 13,604.67 and 5,382.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,858.24 : 13,604.67 = 5,382.18 : x
2. Step 2: Convert to fraction form
   9,858.24/13,604.67 = 5,382.18/x
3. Step 3: Cross multiply
   9,858.24x = 13,604.67 × 5,382.18
4. Step 4: Simplify right side
   9,858.24x = 73,222,782.78
5. Step 5: Solve for x
   x = 73,222,782.78/9,858.24
6. Step 6: Final answer
   x = 7,427.57