Finding the Fourth Proportional to 12,665.18, 18,992.24 and 4,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,665.18 : 18,992.24 = 4,868.50 : x
2. Step 2: Convert to fraction form
   12,665.18/18,992.24 = 4,868.50/x
3. Step 3: Cross multiply
   12,665.18x = 18,992.24 × 4,868.50
4. Step 4: Simplify right side
   12,665.18x = 92,463,720.44
5. Step 5: Solve for x
   x = 92,463,720.44/12,665.18
6. Step 6: Final answer
   x = 7,300.62