Finding the Fourth Proportional to 6,112.70, 8,435.72 and 3,460.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,112.70 : 8,435.72 = 3,460.05 : x
2. Step 2: Convert to fraction form
   6,112.70/8,435.72 = 3,460.05/x
3. Step 3: Cross multiply
   6,112.70x = 8,435.72 × 3,460.05
4. Step 4: Simplify right side
   6,112.70x = 29,187,991.90
5. Step 5: Solve for x
   x = 29,187,991.90/6,112.70
6. Step 6: Final answer
   x = 4,774.98