Finding the Fourth Proportional to 31,045.50, 42,886.35 and 27,687.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,045.50 : 42,886.35 = 27,687.24 : x
2. Step 2: Convert to fraction form
   31,045.50/42,886.35 = 27,687.24/x
3. Step 3: Cross multiply
   31,045.50x = 42,886.35 × 27,687.24
4. Step 4: Simplify right side
   31,045.50x = 1,187,404,665.17
5. Step 5: Solve for x
   x = 1,187,404,665.17/31,045.50
6. Step 6: Final answer
   x = 38,247.24