Finding the Fourth Proportional to 7,285.50, 10,930.14 and 5,310.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,285.50 : 10,930.14 = 5,310.18 : x
2. Step 2: Convert to fraction form
   7,285.50/10,930.14 = 5,310.18/x
3. Step 3: Cross multiply
   7,285.50x = 10,930.14 × 5,310.18
4. Step 4: Simplify right side
   7,285.50x = 58,041,010.83
5. Step 5: Solve for x
   x = 58,041,010.83/7,285.50
6. Step 6: Final answer
   x = 7,966.65