Finding the Fourth Proportional to 5,155.43, 7,109.64 and 3,364.29

Step by Step Solution

1. Step 1: Write the proportion equation
   5,155.43 : 7,109.64 = 3,364.29 : x
2. Step 2: Convert to fraction form
   5,155.43/7,109.64 = 3,364.29/x
3. Step 3: Cross multiply
   5,155.43x = 7,109.64 × 3,364.29
4. Step 4: Simplify right side
   5,155.43x = 23,918,890.76
5. Step 5: Solve for x
   x = 23,918,890.76/5,155.43
6. Step 6: Final answer
   x = 4,639.56