Finding the Fourth Proportional to 9,983.43, 13,777.16 and 5,507.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.43 : 13,777.16 = 5,507.10 : x
2. Step 2: Convert to fraction form
   9,983.43/13,777.16 = 5,507.10/x
3. Step 3: Cross multiply
   9,983.43x = 13,777.16 × 5,507.10
4. Step 4: Simplify right side
   9,983.43x = 75,872,170.30
5. Step 5: Solve for x
   x = 75,872,170.30/9,983.43
6. Step 6: Final answer
   x = 7,599.81