Finding the Fourth Proportional to 9,383.50, 12,949.32 and 5,191.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,383.50 : 12,949.32 = 5,191.84 : x
2. Step 2: Convert to fraction form
   9,383.50/12,949.32 = 5,191.84/x
3. Step 3: Cross multiply
   9,383.50x = 12,949.32 × 5,191.84
4. Step 4: Simplify right side
   9,383.50x = 67,230,797.55
5. Step 5: Solve for x
   x = 67,230,797.55/9,383.50
6. Step 6: Final answer
   x = 7,164.79