Finding the Fourth Proportional to 9,465.78, 13,062.72 and 5,274

Step by Step Solution

1. Step 1: Write the proportion equation
   9,465.78 : 13,062.72 = 5,274 : x
2. Step 2: Convert to fraction form
   9,465.78/13,062.72 = 5,274/x
3. Step 3: Cross multiply
   9,465.78x = 13,062.72 × 5,274
4. Step 4: Simplify right side
   9,465.78x = 68,892,785.28
5. Step 5: Solve for x
   x = 68,892,785.28/9,465.78
6. Step 6: Final answer
   x = 7,278.09