Finding the Fourth Proportional to 8,606.86, 12,916.52 and 3,060.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,606.86 : 12,916.52 = 3,060.25 : x
2. Step 2: Convert to fraction form
   8,606.86/12,916.52 = 3,060.25/x
3. Step 3: Cross multiply
   8,606.86x = 12,916.52 × 3,060.25
4. Step 4: Simplify right side
   8,606.86x = 39,527,780.33
5. Step 5: Solve for x
   x = 39,527,780.33/8,606.86
6. Step 6: Final answer
   x = 4,592.59