Finding the Fourth Proportional to 31,656.49, 43,699.41 and 19,725.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,656.49 : 43,699.41 = 19,725.72 : x
2. Step 2: Convert to fraction form
   31,656.49/43,699.41 = 19,725.72/x
3. Step 3: Cross multiply
   31,656.49x = 43,699.41 × 19,725.72
4. Step 4: Simplify right side
   31,656.49x = 862,002,325.83
5. Step 5: Solve for x
   x = 862,002,325.83/31,656.49
6. Step 6: Final answer
   x = 27,229.88