Finding the Fourth Proportional to 9,102.89, 12,563.19 and 5,124.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,102.89 : 12,563.19 = 5,124.78 : x
2. Step 2: Convert to fraction form
   9,102.89/12,563.19 = 5,124.78/x
3. Step 3: Cross multiply
   9,102.89x = 12,563.19 × 5,124.78
4. Step 4: Simplify right side
   9,102.89x = 64,383,584.85
5. Step 5: Solve for x
   x = 64,383,584.85/9,102.89
6. Step 6: Final answer
   x = 7,072.88