Finding the Fourth Proportional to 31,469.82, 43,414.47 and 19,509.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,469.82 : 43,414.47 = 19,509.18 : x
2. Step 2: Convert to fraction form
   31,469.82/43,414.47 = 19,509.18/x
3. Step 3: Cross multiply
   31,469.82x = 43,414.47 × 19,509.18
4. Step 4: Simplify right side
   31,469.82x = 846,980,709.83
5. Step 5: Solve for x
   x = 846,980,709.83/31,469.82
6. Step 6: Final answer
   x = 26,914.06