Finding the Fourth Proportional to 17,667.69, 26,494.56 and 7,800

Step by Step Solution

1. Step 1: Write the proportion equation
   17,667.69 : 26,494.56 = 7,800 : x
2. Step 2: Convert to fraction form
   17,667.69/26,494.56 = 7,800/x
3. Step 3: Cross multiply
   17,667.69x = 26,494.56 × 7,800
4. Step 4: Simplify right side
   17,667.69x = 206,657,568
5. Step 5: Solve for x
   x = 206,657,568/17,667.69
6. Step 6: Final answer
   x = 11,696.92