Finding the Fourth Proportional to 31,837.72, 43,951.64 and 19,904.91

Step by Step Solution

1. Step 1: Write the proportion equation
   31,837.72 : 43,951.64 = 19,904.91 : x
2. Step 2: Convert to fraction form
   31,837.72/43,951.64 = 19,904.91/x
3. Step 3: Cross multiply
   31,837.72x = 43,951.64 × 19,904.91
4. Step 4: Simplify right side
   31,837.72x = 874,853,438.55
5. Step 5: Solve for x
   x = 874,853,438.55/31,837.72
6. Step 6: Final answer
   x = 27,478.52