Finding the Fourth Proportional to 9,983.64, 13,776.76 and 5,507.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.64 : 13,776.76 = 5,507.42 : x
2. Step 2: Convert to fraction form
   9,983.64/13,776.76 = 5,507.42/x
3. Step 3: Cross multiply
   9,983.64x = 13,776.76 × 5,507.42
4. Step 4: Simplify right side
   9,983.64x = 75,874,403.56
5. Step 5: Solve for x
   x = 75,874,403.56/9,983.64
6. Step 6: Final answer
   x = 7,599.87