Finding the Fourth Proportional to 17,456.36, 26,185.76 and 5,777.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,456.36 : 26,185.76 = 5,777.78 : x
2. Step 2: Convert to fraction form
   17,456.36/26,185.76 = 5,777.78/x
3. Step 3: Cross multiply
   17,456.36x = 26,185.76 × 5,777.78
4. Step 4: Simplify right side
   17,456.36x = 151,295,531.52
5. Step 5: Solve for x
   x = 151,295,531.52/17,456.36
6. Step 6: Final answer
   x = 8,667.07