Finding the Fourth Proportional to 31,091.24, 42,896.52 and 28,097.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,091.24 : 42,896.52 = 28,097.48 : x
2. Step 2: Convert to fraction form
   31,091.24/42,896.52 = 28,097.48/x
3. Step 3: Cross multiply
   31,091.24x = 42,896.52 × 28,097.48
4. Step 4: Simplify right side
   31,091.24x = 1,205,284,112.77
5. Step 5: Solve for x
   x = 1,205,284,112.77/31,091.24
6. Step 6: Final answer
   x = 38,766.04