Finding the Fourth Proportional to 12,099.50, 16,700.19 and 7,387.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,099.50 : 16,700.19 = 7,387.76 : x
2. Step 2: Convert to fraction form
   12,099.50/16,700.19 = 7,387.76/x
3. Step 3: Cross multiply
   12,099.50x = 16,700.19 × 7,387.76
4. Step 4: Simplify right side
   12,099.50x = 123,376,995.67
5. Step 5: Solve for x
   x = 123,376,995.67/12,099.50
6. Step 6: Final answer
   x = 10,196.87