Finding the Fourth Proportional to 12,048.16, 18,072.78 and 5,293.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,048.16 : 18,072.78 = 5,293.30 : x
2. Step 2: Convert to fraction form
   12,048.16/18,072.78 = 5,293.30/x
3. Step 3: Cross multiply
   12,048.16x = 18,072.78 × 5,293.30
4. Step 4: Simplify right side
   12,048.16x = 95,664,646.37
5. Step 5: Solve for x
   x = 95,664,646.37/12,048.16
6. Step 6: Final answer
   x = 7,940.19