Finding the Fourth Proportional to 7,086.45, 9,792.80 and 5,314.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.45 : 9,792.80 = 5,314.98 : x
2. Step 2: Convert to fraction form
   7,086.45/9,792.80 = 5,314.98/x
3. Step 3: Cross multiply
   7,086.45x = 9,792.80 × 5,314.98
4. Step 4: Simplify right side
   7,086.45x = 52,048,509.57
5. Step 5: Solve for x
   x = 52,048,509.57/7,086.45
6. Step 6: Final answer
   x = 7,344.79