Finding the Fourth Proportional to 10,099.69, 13,942.12 and 7,230.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,099.69 : 13,942.12 = 7,230.67 : x
2. Step 2: Convert to fraction form
   10,099.69/13,942.12 = 7,230.67/x
3. Step 3: Cross multiply
   10,099.69x = 13,942.12 × 7,230.67
4. Step 4: Simplify right side
   10,099.69x = 100,810,868.82
5. Step 5: Solve for x
   x = 100,810,868.82/10,099.69
6. Step 6: Final answer
   x = 9,981.58