Finding the Fourth Proportional to 39,080.52, 53,929.86 and 22,085.40

Step by Step Solution

1. Step 1: Write the proportion equation
   39,080.52 : 53,929.86 = 22,085.40 : x
2. Step 2: Convert to fraction form
   39,080.52/53,929.86 = 22,085.40/x
3. Step 3: Cross multiply
   39,080.52x = 53,929.86 × 22,085.40
4. Step 4: Simplify right side
   39,080.52x = 1,191,062,530.04
5. Step 5: Solve for x
   x = 1,191,062,530.04/39,080.52
6. Step 6: Final answer
   x = 30,477.14