Finding the Fourth Proportional to 6,667.99, 10,003.30 and 5,579.96

Step by Step Solution

1. Step 1: Write the proportion equation
   6,667.99 : 10,003.30 = 5,579.96 : x
2. Step 2: Convert to fraction form
   6,667.99/10,003.30 = 5,579.96/x
3. Step 3: Cross multiply
   6,667.99x = 10,003.30 × 5,579.96
4. Step 4: Simplify right side
   6,667.99x = 55,817,949.90
5. Step 5: Solve for x
   x = 55,817,949.90/6,667.99
6. Step 6: Final answer
   x = 8,371.03