Finding the Fourth Proportional to 9,859.55, 13,606.10 and 5,383.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,859.55 : 13,606.10 = 5,383.29 : x
2. Step 2: Convert to fraction form
   9,859.55/13,606.10 = 5,383.29/x
3. Step 3: Cross multiply
   9,859.55x = 13,606.10 × 5,383.29
4. Step 4: Simplify right side
   9,859.55x = 73,245,555.15
5. Step 5: Solve for x
   x = 73,245,555.15/9,859.55
6. Step 6: Final answer
   x = 7,428.90