Finding the Fourth Proportional to 9,269.84, 12,792.72 and 5,078.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,269.84 : 12,792.72 = 5,078.12 : x
2. Step 2: Convert to fraction form
   9,269.84/12,792.72 = 5,078.12/x
3. Step 3: Cross multiply
   9,269.84x = 12,792.72 × 5,078.12
4. Step 4: Simplify right side
   9,269.84x = 64,962,967.29
5. Step 5: Solve for x
   x = 64,962,967.29/9,269.84
6. Step 6: Final answer
   x = 7,007.99