Finding the Fourth Proportional to 6,112.72, 8,434.29 and 3,460.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,112.72 : 8,434.29 = 3,460.78 : x
2. Step 2: Convert to fraction form
   6,112.72/8,434.29 = 3,460.78/x
3. Step 3: Cross multiply
   6,112.72x = 8,434.29 × 3,460.78
4. Step 4: Simplify right side
   6,112.72x = 29,189,222.15
5. Step 5: Solve for x
   x = 29,189,222.15/6,112.72
6. Step 6: Final answer
   x = 4,775.16