Finding the Fourth Proportional to 12,293.57, 18,439.25 and 4,896.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,293.57 : 18,439.25 = 4,896.05 : x
2. Step 2: Convert to fraction form
   12,293.57/18,439.25 = 4,896.05/x
3. Step 3: Cross multiply
   12,293.57x = 18,439.25 × 4,896.05
4. Step 4: Simplify right side
   12,293.57x = 90,279,373.29
5. Step 5: Solve for x
   x = 90,279,373.29/12,293.57
6. Step 6: Final answer
   x = 7,343.62