Finding the Fourth Proportional to 14,128.85, 19,498.72 and 7,841.23

Step by Step Solution

1. Step 1: Write the proportion equation
   14,128.85 : 19,498.72 = 7,841.23 : x
2. Step 2: Convert to fraction form
   14,128.85/19,498.72 = 7,841.23/x
3. Step 3: Cross multiply
   14,128.85x = 19,498.72 × 7,841.23
4. Step 4: Simplify right side
   14,128.85x = 152,893,850.73
5. Step 5: Solve for x
   x = 152,893,850.73/14,128.85
6. Step 6: Final answer
   x = 10,821.39