Finding the Fourth Proportional to 28,859.58, 39,824.42 and 16,111.94

Step by Step Solution

1. Step 1: Write the proportion equation
   28,859.58 : 39,824.42 = 16,111.94 : x
2. Step 2: Convert to fraction form
   28,859.58/39,824.42 = 16,111.94/x
3. Step 3: Cross multiply
   28,859.58x = 39,824.42 × 16,111.94
4. Step 4: Simplify right side
   28,859.58x = 641,648,665.57
5. Step 5: Solve for x
   x = 641,648,665.57/28,859.58
6. Step 6: Final answer
   x = 22,233.47