Finding the Fourth Proportional to 9,820.78, 13,552.74 and 5,344.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,820.78 : 13,552.74 = 5,344.56 : x
2. Step 2: Convert to fraction form
   9,820.78/13,552.74 = 5,344.56/x
3. Step 3: Cross multiply
   9,820.78x = 13,552.74 × 5,344.56
4. Step 4: Simplify right side
   9,820.78x = 72,433,432.09
5. Step 5: Solve for x
   x = 72,433,432.09/9,820.78
6. Step 6: Final answer
   x = 7,375.53