Finding the Fourth Proportional to 6,667.01, 10,010.79 and 5,640.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,667.01 : 10,010.79 = 5,640.50 : x
2. Step 2: Convert to fraction form
   6,667.01/10,010.79 = 5,640.50/x
3. Step 3: Cross multiply
   6,667.01x = 10,010.79 × 5,640.50
4. Step 4: Simplify right side
   6,667.01x = 56,465,782.74
5. Step 5: Solve for x
   x = 56,465,782.74/6,667.01
6. Step 6: Final answer
   x = 8,469.44