Finding the Fourth Proportional to 31,142.88, 42,748.56 and 27,527.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,142.88 : 42,748.56 = 27,527.04 : x
2. Step 2: Convert to fraction form
   31,142.88/42,748.56 = 27,527.04/x
3. Step 3: Cross multiply
   31,142.88x = 42,748.56 × 27,527.04
4. Step 4: Simplify right side
   31,142.88x = 1,176,741,321.06
5. Step 5: Solve for x
   x = 1,176,741,321.06/31,142.88
6. Step 6: Final answer
   x = 37,785.24