Finding the Fourth Proportional to 11,451.60, 17,185.50 and 6,768.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,451.60 : 17,185.50 = 6,768.72 : x
2. Step 2: Convert to fraction form
   11,451.60/17,185.50 = 6,768.72/x
3. Step 3: Cross multiply
   11,451.60x = 17,185.50 × 6,768.72
4. Step 4: Simplify right side
   11,451.60x = 116,323,837.56
5. Step 5: Solve for x
   x = 116,323,837.56/11,451.60
6. Step 6: Final answer
   x = 10,157.87