Finding the Fourth Proportional to 15,036.51, 20,749.86 and 8,322.42

Step by Step Solution

1. Step 1: Write the proportion equation
   15,036.51 : 20,749.86 = 8,322.42 : x
2. Step 2: Convert to fraction form
   15,036.51/20,749.86 = 8,322.42/x
3. Step 3: Cross multiply
   15,036.51x = 20,749.86 × 8,322.42
4. Step 4: Simplify right side
   15,036.51x = 172,689,049.86
5. Step 5: Solve for x
   x = 172,689,049.86/15,036.51
6. Step 6: Final answer
   x = 11,484.65