Finding the Fourth Proportional to 8,123.49, 12,187.06 and 2,577.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.49 : 12,187.06 = 2,577.17 : x
2. Step 2: Convert to fraction form
   8,123.49/12,187.06 = 2,577.17/x
3. Step 3: Cross multiply
   8,123.49x = 12,187.06 × 2,577.17
4. Step 4: Simplify right side
   8,123.49x = 31,408,080.89
5. Step 5: Solve for x
   x = 31,408,080.89/8,123.49
6. Step 6: Final answer
   x = 3,866.33