Finding the Fourth Proportional to 39,086.82, 53,939.52 and 21,182.04

Step by Step Solution

1. Step 1: Write the proportion equation
   39,086.82 : 53,939.52 = 21,182.04 : x
2. Step 2: Convert to fraction form
   39,086.82/53,939.52 = 21,182.04/x
3. Step 3: Cross multiply
   39,086.82x = 53,939.52 × 21,182.04
4. Step 4: Simplify right side
   39,086.82x = 1,142,549,070.22
5. Step 5: Solve for x
   x = 1,142,549,070.22/39,086.82
6. Step 6: Final answer
   x = 29,231.06