Finding the Fourth Proportional to 14,230.69, 19,636.94 and 7,856.87

Step by Step Solution

1. Step 1: Write the proportion equation
   14,230.69 : 19,636.94 = 7,856.87 : x
2. Step 2: Convert to fraction form
   14,230.69/19,636.94 = 7,856.87/x
3. Step 3: Cross multiply
   14,230.69x = 19,636.94 × 7,856.87
4. Step 4: Simplify right side
   14,230.69x = 154,284,884.78
5. Step 5: Solve for x
   x = 154,284,884.78/14,230.69
6. Step 6: Final answer
   x = 10,841.70