Finding the Fourth Proportional to 8,573.89, 12,861.86 and 3,026.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,573.89 : 12,861.86 = 3,026.09 : x
2. Step 2: Convert to fraction form
   8,573.89/12,861.86 = 3,026.09/x
3. Step 3: Cross multiply
   8,573.89x = 12,861.86 × 3,026.09
4. Step 4: Simplify right side
   8,573.89x = 38,921,066.49
5. Step 5: Solve for x
   x = 38,921,066.49/8,573.89
6. Step 6: Final answer
   x = 4,539.49