Finding the Fourth Proportional to 12,680.58, 19,022.49 and 4,891.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,680.58 : 19,022.49 = 4,891.62 : x
2. Step 2: Convert to fraction form
   12,680.58/19,022.49 = 4,891.62/x
3. Step 3: Cross multiply
   12,680.58x = 19,022.49 × 4,891.62
4. Step 4: Simplify right side
   12,680.58x = 93,050,792.53
5. Step 5: Solve for x
   x = 93,050,792.53/12,680.58
6. Step 6: Final answer
   x = 7,338.05