Finding the Fourth Proportional to 6,742.11, 10,111.54 and 3,453.51

Step by Step Solution

1. Step 1: Write the proportion equation
   6,742.11 : 10,111.54 = 3,453.51 : x
2. Step 2: Convert to fraction form
   6,742.11/10,111.54 = 3,453.51/x
3. Step 3: Cross multiply
   6,742.11x = 10,111.54 × 3,453.51
4. Step 4: Simplify right side
   6,742.11x = 34,920,264.43
5. Step 5: Solve for x
   x = 34,920,264.43/6,742.11
6. Step 6: Final answer
   x = 5,179.43