Finding the Fourth Proportional to 12,333.30, 18,506.61 and 5,320.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,333.30 : 18,506.61 = 5,320.20 : x
2. Step 2: Convert to fraction form
   12,333.30/18,506.61 = 5,320.20/x
3. Step 3: Cross multiply
   12,333.30x = 18,506.61 × 5,320.20
4. Step 4: Simplify right side
   12,333.30x = 98,458,831.82
5. Step 5: Solve for x
   x = 98,458,831.82/12,333.30
6. Step 6: Final answer
   x = 7,983.17