Finding the Fourth Proportional to 10,192.07, 14,064.40 and 5,715.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,192.07 : 14,064.40 = 5,715.79 : x
2. Step 2: Convert to fraction form
   10,192.07/14,064.40 = 5,715.79/x
3. Step 3: Cross multiply
   10,192.07x = 14,064.40 × 5,715.79
4. Step 4: Simplify right side
   10,192.07x = 80,389,128.30
5. Step 5: Solve for x
   x = 80,389,128.30/10,192.07
6. Step 6: Final answer
   x = 7,887.42