Finding the Fourth Proportional to 11,494.92, 15,864.71 and 7,021.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,494.92 : 15,864.71 = 7,021.25 : x
2. Step 2: Convert to fraction form
   11,494.92/15,864.71 = 7,021.25/x
3. Step 3: Cross multiply
   11,494.92x = 15,864.71 × 7,021.25
4. Step 4: Simplify right side
   11,494.92x = 111,389,980.66
5. Step 5: Solve for x
   x = 111,389,980.66/11,494.92
6. Step 6: Final answer
   x = 9,690.37