Finding the Fourth Proportional to 9,300.34, 12,828.67 and 6,113.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.34 : 12,828.67 = 6,113.80 : x
2. Step 2: Convert to fraction form
   9,300.34/12,828.67 = 6,113.80/x
3. Step 3: Cross multiply
   9,300.34x = 12,828.67 × 6,113.80
4. Step 4: Simplify right side
   9,300.34x = 78,431,922.65
5. Step 5: Solve for x
   x = 78,431,922.65/9,300.34
6. Step 6: Final answer
   x = 8,433.23