Finding the Fourth Proportional to 12,299.99, 18,384.77 and 10,706.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,299.99 : 18,384.77 = 10,706.38 : x
2. Step 2: Convert to fraction form
   12,299.99/18,384.77 = 10,706.38/x
3. Step 3: Cross multiply
   12,299.99x = 18,384.77 × 10,706.38
4. Step 4: Simplify right side
   12,299.99x = 196,834,314.64
5. Step 5: Solve for x
   x = 196,834,314.64/12,299.99
6. Step 6: Final answer
   x = 16,002.81