Finding the Fourth Proportional to 27,069.72, 37,356.72 and 15,131.78

Step by Step Solution

1. Step 1: Write the proportion equation
   27,069.72 : 37,356.72 = 15,131.78 : x
2. Step 2: Convert to fraction form
   27,069.72/37,356.72 = 15,131.78/x
3. Step 3: Cross multiply
   27,069.72x = 37,356.72 × 15,131.78
4. Step 4: Simplify right side
   27,069.72x = 565,273,481.78
5. Step 5: Solve for x
   x = 565,273,481.78/27,069.72
6. Step 6: Final answer
   x = 20,882.13