Finding the Fourth Proportional to 9,983.89, 13,777.91 and 5,507.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.89 : 13,777.91 = 5,507.83 : x
2. Step 2: Convert to fraction form
   9,983.89/13,777.91 = 5,507.83/x
3. Step 3: Cross multiply
   9,983.89x = 13,777.91 × 5,507.83
4. Step 4: Simplify right side
   9,983.89x = 75,886,386.04
5. Step 5: Solve for x
   x = 75,886,386.04/9,983.89
6. Step 6: Final answer
   x = 7,600.88