Finding the Fourth Proportional to 3,761.78, 5,192.72 and 3,368.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,761.78 : 5,192.72 = 3,368.12 : x
2. Step 2: Convert to fraction form
   3,761.78/5,192.72 = 3,368.12/x
3. Step 3: Cross multiply
   3,761.78x = 5,192.72 × 3,368.12
4. Step 4: Simplify right side
   3,761.78x = 17,489,704.09
5. Step 5: Solve for x
   x = 17,489,704.09/3,761.78
6. Step 6: Final answer
   x = 4,649.32