Finding the Fourth Proportional to 11,992.86, 17,945.55 and 7,064.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,992.86 : 17,945.55 = 7,064.82 : x
2. Step 2: Convert to fraction form
   11,992.86/17,945.55 = 7,064.82/x
3. Step 3: Cross multiply
   11,992.86x = 17,945.55 × 7,064.82
4. Step 4: Simplify right side
   11,992.86x = 126,782,080.55
5. Step 5: Solve for x
   x = 126,782,080.55/11,992.86
6. Step 6: Final answer
   x = 10,571.46