Finding the Fourth Proportional to 39,647.88, 54,714.83 and 21,741.82

Step by Step Solution

1. Step 1: Write the proportion equation
   39,647.88 : 54,714.83 = 21,741.82 : x
2. Step 2: Convert to fraction form
   39,647.88/54,714.83 = 21,741.82/x
3. Step 3: Cross multiply
   39,647.88x = 54,714.83 × 21,741.82
4. Step 4: Simplify right side
   39,647.88x = 1,189,599,739.69
5. Step 5: Solve for x
   x = 1,189,599,739.69/39,647.88
6. Step 6: Final answer
   x = 30,004.12