Finding the Fourth Proportional to 9,279.43, 12,806.50 and 5,300.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,279.43 : 12,806.50 = 5,300.84 : x
2. Step 2: Convert to fraction form
   9,279.43/12,806.50 = 5,300.84/x
3. Step 3: Cross multiply
   9,279.43x = 12,806.50 × 5,300.84
4. Step 4: Simplify right side
   9,279.43x = 67,885,207.46
5. Step 5: Solve for x
   x = 67,885,207.46/9,279.43
6. Step 6: Final answer
   x = 7,315.67