Finding the Fourth Proportional to 9,983.94, 13,777.94 and 5,507.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.94 : 13,777.94 = 5,507.86 : x
2. Step 2: Convert to fraction form
   9,983.94/13,777.94 = 5,507.86/x
3. Step 3: Cross multiply
   9,983.94x = 13,777.94 × 5,507.86
4. Step 4: Simplify right side
   9,983.94x = 75,886,964.61
5. Step 5: Solve for x
   x = 75,886,964.61/9,983.94
6. Step 6: Final answer
   x = 7,600.90