Finding the Fourth Proportional to 11,499.82, 15,866.94 and 7,021.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,499.82 : 15,866.94 = 7,021.94 : x
2. Step 2: Convert to fraction form
   11,499.82/15,866.94 = 7,021.94/x
3. Step 3: Cross multiply
   11,499.82x = 15,866.94 × 7,021.94
4. Step 4: Simplify right side
   11,499.82x = 111,416,700.66
5. Step 5: Solve for x
   x = 111,416,700.66/11,499.82
6. Step 6: Final answer
   x = 9,688.56