Finding the Fourth Proportional to 9,026.16, 12,453.56 and 5,391.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,026.16 : 12,453.56 = 5,391.78 : x
2. Step 2: Convert to fraction form
   9,026.16/12,453.56 = 5,391.78/x
3. Step 3: Cross multiply
   9,026.16x = 12,453.56 × 5,391.78
4. Step 4: Simplify right side
   9,026.16x = 67,146,828.78
5. Step 5: Solve for x
   x = 67,146,828.78/9,026.16
6. Step 6: Final answer
   x = 7,439.14