Finding the Fourth Proportional to 39,081.82, 53,932.82 and 21,177.32

Step by Step Solution

1. Step 1: Write the proportion equation
   39,081.82 : 53,932.82 = 21,177.32 : x
2. Step 2: Convert to fraction form
   39,081.82/53,932.82 = 21,177.32/x
3. Step 3: Cross multiply
   39,081.82x = 53,932.82 × 21,177.32
4. Step 4: Simplify right side
   39,081.82x = 1,142,152,587.64
5. Step 5: Solve for x
   x = 1,142,152,587.64/39,081.82
6. Step 6: Final answer
   x = 29,224.65