Finding the Fourth Proportional to 12,091.92, 16,688.07 and 7,378.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,091.92 : 16,688.07 = 7,378.98 : x
2. Step 2: Convert to fraction form
   12,091.92/16,688.07 = 7,378.98/x
3. Step 3: Cross multiply
   12,091.92x = 16,688.07 × 7,378.98
4. Step 4: Simplify right side
   12,091.92x = 123,140,934.77
5. Step 5: Solve for x
   x = 123,140,934.77/12,091.92
6. Step 6: Final answer
   x = 10,183.74