Finding the Fourth Proportional to 8,616.96, 12,925.32 and 2,773.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,616.96 : 12,925.32 = 2,773.60 : x
2. Step 2: Convert to fraction form
   8,616.96/12,925.32 = 2,773.60/x
3. Step 3: Cross multiply
   8,616.96x = 12,925.32 × 2,773.60
4. Step 4: Simplify right side
   8,616.96x = 35,849,667.55
5. Step 5: Solve for x
   x = 35,849,667.55/8,616.96
6. Step 6: Final answer
   x = 4,160.36