Finding the Fourth Proportional to 6,943.62, 10,402.34 and 3,429.51

Step by Step Solution

1. Step 1: Write the proportion equation
   6,943.62 : 10,402.34 = 3,429.51 : x
2. Step 2: Convert to fraction form
   6,943.62/10,402.34 = 3,429.51/x
3. Step 3: Cross multiply
   6,943.62x = 10,402.34 × 3,429.51
4. Step 4: Simplify right side
   6,943.62x = 35,674,929.05
5. Step 5: Solve for x
   x = 35,674,929.05/6,943.62
6. Step 6: Final answer
   x = 5,137.80