Finding the Fourth Proportional to 5,168.68, 7,132.80 and 3,072.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,168.68 : 7,132.80 = 3,072.82 : x
2. Step 2: Convert to fraction form
   5,168.68/7,132.80 = 3,072.82/x
3. Step 3: Cross multiply
   5,168.68x = 7,132.80 × 3,072.82
4. Step 4: Simplify right side
   5,168.68x = 21,917,810.50
5. Step 5: Solve for x
   x = 21,917,810.50/5,168.68
6. Step 6: Final answer
   x = 4,240.50