Finding the Fourth Proportional to 27,131.63, 37,440.78 and 15,031.62

Step by Step Solution

1. Step 1: Write the proportion equation
   27,131.63 : 37,440.78 = 15,031.62 : x
2. Step 2: Convert to fraction form
   27,131.63/37,440.78 = 15,031.62/x
3. Step 3: Cross multiply
   27,131.63x = 37,440.78 × 15,031.62
4. Step 4: Simplify right side
   27,131.63x = 562,795,315.10
5. Step 5: Solve for x
   x = 562,795,315.10/27,131.63
6. Step 6: Final answer
   x = 20,743.14