Finding the Fourth Proportional to 10,969.62, 16,454.79 and 3,178.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,969.62 : 16,454.79 = 3,178.50 : x
2. Step 2: Convert to fraction form
   10,969.62/16,454.79 = 3,178.50/x
3. Step 3: Cross multiply
   10,969.62x = 16,454.79 × 3,178.50
4. Step 4: Simplify right side
   10,969.62x = 52,301,550.02
5. Step 5: Solve for x
   x = 52,301,550.02/10,969.62
6. Step 6: Final answer
   x = 4,767.85