Finding the Fourth Proportional to 27,086.72, 37,378.52 and 15,756.24

Step by Step Solution

1. Step 1: Write the proportion equation
   27,086.72 : 37,378.52 = 15,756.24 : x
2. Step 2: Convert to fraction form
   27,086.72/37,378.52 = 15,756.24/x
3. Step 3: Cross multiply
   27,086.72x = 37,378.52 × 15,756.24
4. Step 4: Simplify right side
   27,086.72x = 588,944,931.96
5. Step 5: Solve for x
   x = 588,944,931.96/27,086.72
6. Step 6: Final answer
   x = 21,742.94