Finding the Fourth Proportional to 39,704.52, 54,792.27 and 21,799.98

Step by Step Solution

1. Step 1: Write the proportion equation
   39,704.52 : 54,792.27 = 21,799.98 : x
2. Step 2: Convert to fraction form
   39,704.52/54,792.27 = 21,799.98/x
3. Step 3: Cross multiply
   39,704.52x = 54,792.27 × 21,799.98
4. Step 4: Simplify right side
   39,704.52x = 1,194,470,390.15
5. Step 5: Solve for x
   x = 1,194,470,390.15/39,704.52
6. Step 6: Final answer
   x = 30,083.99