Finding the Fourth Proportional to 9,983.28, 13,777.40 and 5,507.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.28 : 13,777.40 = 5,507.10 : x
2. Step 2: Convert to fraction form
   9,983.28/13,777.40 = 5,507.10/x
3. Step 3: Cross multiply
   9,983.28x = 13,777.40 × 5,507.10
4. Step 4: Simplify right side
   9,983.28x = 75,873,519.54
5. Step 5: Solve for x
   x = 75,873,519.54/9,983.28
6. Step 6: Final answer
   x = 7,600.06