Finding the Fourth Proportional to 9,322.78, 13,983.72 and 3,478.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,322.78 : 13,983.72 = 3,478.94 : x
2. Step 2: Convert to fraction form
   9,322.78/13,983.72 = 3,478.94/x
3. Step 3: Cross multiply
   9,322.78x = 13,983.72 × 3,478.94
4. Step 4: Simplify right side
   9,322.78x = 48,648,522.86
5. Step 5: Solve for x
   x = 48,648,522.86/9,322.78
6. Step 6: Final answer
   x = 5,218.24