Finding the Fourth Proportional to 12,310.56, 18,465.72 and 3,076.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,310.56 : 18,465.72 = 3,076.56 : x
2. Step 2: Convert to fraction form
   12,310.56/18,465.72 = 3,076.56/x
3. Step 3: Cross multiply
   12,310.56x = 18,465.72 × 3,076.56
4. Step 4: Simplify right side
   12,310.56x = 56,810,895.52
5. Step 5: Solve for x
   x = 56,810,895.52/12,310.56
6. Step 6: Final answer
   x = 4,614.81