Finding the Fourth Proportional to 9,983.99, 13,777.92 and 5,507.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.99 : 13,777.92 = 5,507.73 : x
2. Step 2: Convert to fraction form
   9,983.99/13,777.92 = 5,507.73/x
3. Step 3: Cross multiply
   9,983.99x = 13,777.92 × 5,507.73
4. Step 4: Simplify right side
   9,983.99x = 75,885,063.32
5. Step 5: Solve for x
   x = 75,885,063.32/9,983.99
6. Step 6: Final answer
   x = 7,600.67