Finding the Fourth Proportional to 6,428.69, 9,642.86 and 3,468.43

Step by Step Solution

1. Step 1: Write the proportion equation
   6,428.69 : 9,642.86 = 3,468.43 : x
2. Step 2: Convert to fraction form
   6,428.69/9,642.86 = 3,468.43/x
3. Step 3: Cross multiply
   6,428.69x = 9,642.86 × 3,468.43
4. Step 4: Simplify right side
   6,428.69x = 33,445,584.91
5. Step 5: Solve for x
   x = 33,445,584.91/6,428.69
6. Step 6: Final answer
   x = 5,202.55