Finding the Fourth Proportional to 39,659.82, 54,734.04 and 21,758.34

Step by Step Solution

1. Step 1: Write the proportion equation
   39,659.82 : 54,734.04 = 21,758.34 : x
2. Step 2: Convert to fraction form
   39,659.82/54,734.04 = 21,758.34/x
3. Step 3: Cross multiply
   39,659.82x = 54,734.04 × 21,758.34
4. Step 4: Simplify right side
   39,659.82x = 1,190,921,851.89
5. Step 5: Solve for x
   x = 1,190,921,851.89/39,659.82
6. Step 6: Final answer
   x = 30,028.42