Finding the Fourth Proportional to 10,928.43, 16,385.76 and 4,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,928.43 : 16,385.76 = 4,356.50 : x
2. Step 2: Convert to fraction form
   10,928.43/16,385.76 = 4,356.50/x
3. Step 3: Cross multiply
   10,928.43x = 16,385.76 × 4,356.50
4. Step 4: Simplify right side
   10,928.43x = 71,384,481.51
5. Step 5: Solve for x
   x = 71,384,481.51/10,928.43
6. Step 6: Final answer
   x = 6,532.00