Finding the Fourth Proportional to 10,992.64, 16,478.59 and 3,591.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992.64 : 16,478.59 = 3,591.92 : x
2. Step 2: Convert to fraction form
   10,992.64/16,478.59 = 3,591.92/x
3. Step 3: Cross multiply
   10,992.64x = 16,478.59 × 3,591.92
4. Step 4: Simplify right side
   10,992.64x = 59,189,769.60
5. Step 5: Solve for x
   x = 59,189,769.60/10,992.64
6. Step 6: Final answer
   x = 5,384.49