Finding the Fourth Proportional to 9,300.27, 12,830.67 and 5,319.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.27 : 12,830.67 = 5,319.22 : x
2. Step 2: Convert to fraction form
   9,300.27/12,830.67 = 5,319.22/x
3. Step 3: Cross multiply
   9,300.27x = 12,830.67 × 5,319.22
4. Step 4: Simplify right side
   9,300.27x = 68,249,156.48
5. Step 5: Solve for x
   x = 68,249,156.48/9,300.27
6. Step 6: Final answer
   x = 7,338.41