Finding the Fourth Proportional to 9,550.78, 13,181.28 and 5,359

Step by Step Solution

1. Step 1: Write the proportion equation
   9,550.78 : 13,181.28 = 5,359 : x
2. Step 2: Convert to fraction form
   9,550.78/13,181.28 = 5,359/x
3. Step 3: Cross multiply
   9,550.78x = 13,181.28 × 5,359
4. Step 4: Simplify right side
   9,550.78x = 70,638,479.52
5. Step 5: Solve for x
   x = 70,638,479.52/9,550.78
6. Step 6: Final answer
   x = 7,396.10