Finding the Fourth Proportional to 8,417.56, 12,631.98 and 2,945.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,417.56 : 12,631.98 = 2,945.56 : x
2. Step 2: Convert to fraction form
   8,417.56/12,631.98 = 2,945.56/x
3. Step 3: Cross multiply
   8,417.56x = 12,631.98 × 2,945.56
4. Step 4: Simplify right side
   8,417.56x = 37,208,255.01
5. Step 5: Solve for x
   x = 37,208,255.01/8,417.56
6. Step 6: Final answer
   x = 4,420.31