Finding the Fourth Proportional to 9,076.79, 13,616.63 and 3,152.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,076.79 : 13,616.63 = 3,152.15 : x
2. Step 2: Convert to fraction form
   9,076.79/13,616.63 = 3,152.15/x
3. Step 3: Cross multiply
   9,076.79x = 13,616.63 × 3,152.15
4. Step 4: Simplify right side
   9,076.79x = 42,921,576.41
5. Step 5: Solve for x
   x = 42,921,576.41/9,076.79
6. Step 6: Final answer
   x = 4,728.72