Finding the Fourth Proportional to 10,192.34, 14,065.20 and 5,715.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,192.34 : 14,065.20 = 5,715.99 : x
2. Step 2: Convert to fraction form
   10,192.34/14,065.20 = 5,715.99/x
3. Step 3: Cross multiply
   10,192.34x = 14,065.20 × 5,715.99
4. Step 4: Simplify right side
   10,192.34x = 80,396,542.55
5. Step 5: Solve for x
   x = 80,396,542.55/10,192.34
6. Step 6: Final answer
   x = 7,887.94