Finding the Fourth Proportional to 10,928.86, 16,387.52 and 4,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,928.86 : 16,387.52 = 4,769.50 : x
2. Step 2: Convert to fraction form
   10,928.86/16,387.52 = 4,769.50/x
3. Step 3: Cross multiply
   10,928.86x = 16,387.52 × 4,769.50
4. Step 4: Simplify right side
   10,928.86x = 78,160,276.64
5. Step 5: Solve for x
   x = 78,160,276.64/10,928.86
6. Step 6: Final answer
   x = 7,151.73