Finding the Fourth Proportional to 9,858.16, 13,603.62 and 5,608.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,858.16 : 13,603.62 = 5,608.59 : x
2. Step 2: Convert to fraction form
   9,858.16/13,603.62 = 5,608.59/x
3. Step 3: Cross multiply
   9,858.16x = 13,603.62 × 5,608.59
4. Step 4: Simplify right side
   9,858.16x = 76,297,127.10
5. Step 5: Solve for x
   x = 76,297,127.10/9,858.16
6. Step 6: Final answer
   x = 7,739.49