Finding the Fourth Proportional to 7,817.98, 10,788.38 and 4,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,817.98 : 10,788.38 = 4,280.50 : x
2. Step 2: Convert to fraction form
   7,817.98/10,788.38 = 4,280.50/x
3. Step 3: Cross multiply
   7,817.98x = 10,788.38 × 4,280.50
4. Step 4: Simplify right side
   7,817.98x = 46,179,660.59
5. Step 5: Solve for x
   x = 46,179,660.59/7,817.98
6. Step 6: Final answer
   x = 5,906.85