Finding the Fourth Proportional to 39,300.12, 54,196.74 and 30,333.42

Step by Step Solution

1. Step 1: Write the proportion equation
   39,300.12 : 54,196.74 = 30,333.42 : x
2. Step 2: Convert to fraction form
   39,300.12/54,196.74 = 30,333.42/x
3. Step 3: Cross multiply
   39,300.12x = 54,196.74 × 30,333.42
4. Step 4: Simplify right side
   39,300.12x = 1,643,972,477.05
5. Step 5: Solve for x
   x = 1,643,972,477.05/39,300.12
6. Step 6: Final answer
   x = 41,831.23