Finding the Fourth Proportional to 9,190.72, 13,777.72 and 3,343.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,190.72 : 13,777.72 = 3,343.20 : x
2. Step 2: Convert to fraction form
   9,190.72/13,777.72 = 3,343.20/x
3. Step 3: Cross multiply
   9,190.72x = 13,777.72 × 3,343.20
4. Step 4: Simplify right side
   9,190.72x = 46,061,673.50
5. Step 5: Solve for x
   x = 46,061,673.50/9,190.72
6. Step 6: Final answer
   x = 5,011.76