Finding the Fourth Proportional to 39,081.52, 53,931.24 and 22,086.40

Step by Step Solution

1. Step 1: Write the proportion equation
   39,081.52 : 53,931.24 = 22,086.40 : x
2. Step 2: Convert to fraction form
   39,081.52/53,931.24 = 22,086.40/x
3. Step 3: Cross multiply
   39,081.52x = 53,931.24 × 22,086.40
4. Step 4: Simplify right side
   39,081.52x = 1,191,146,939.14
5. Step 5: Solve for x
   x = 1,191,146,939.14/39,081.52
6. Step 6: Final answer
   x = 30,478.52