Finding the Fourth Proportional to 14,280.25, 19,706.02 and 7,819.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,280.25 : 19,706.02 = 7,819.72 : x
2. Step 2: Convert to fraction form
   14,280.25/19,706.02 = 7,819.72/x
3. Step 3: Cross multiply
   14,280.25x = 19,706.02 × 7,819.72
4. Step 4: Simplify right side
   14,280.25x = 154,095,558.71
5. Step 5: Solve for x
   x = 154,095,558.71/14,280.25
6. Step 6: Final answer
   x = 10,790.82