Finding the Fourth Proportional to 17,200.71, 25,796.72 and 6,667.11

Step by Step Solution

1. Step 1: Write the proportion equation
   17,200.71 : 25,796.72 = 6,667.11 : x
2. Step 2: Convert to fraction form
   17,200.71/25,796.72 = 6,667.11/x
3. Step 3: Cross multiply
   17,200.71x = 25,796.72 × 6,667.11
4. Step 4: Simplify right side
   17,200.71x = 171,989,536.54
5. Step 5: Solve for x
   x = 171,989,536.54/17,200.71
6. Step 6: Final answer
   x = 9,998.98