Finding the Fourth Proportional to 9,048, 12,482.88 and 5,685.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,048 : 12,482.88 = 5,685.12 : x
2. Step 2: Convert to fraction form
   9,048/12,482.88 = 5,685.12/x
3. Step 3: Cross multiply
   9,048x = 12,482.88 × 5,685.12
4. Step 4: Simplify right side
   9,048x = 70,966,670.75
5. Step 5: Solve for x
   x = 70,966,670.75/9,048
6. Step 6: Final answer
   x = 7,843.35