Finding the Fourth Proportional to 37,139.31, 55,727.34 and 17,419.38

Step by Step Solution

1. Step 1: Write the proportion equation
   37,139.31 : 55,727.34 = 17,419.38 : x
2. Step 2: Convert to fraction form
   37,139.31/55,727.34 = 17,419.38/x
3. Step 3: Cross multiply
   37,139.31x = 55,727.34 × 17,419.38
4. Step 4: Simplify right side
   37,139.31x = 970,735,711.85
5. Step 5: Solve for x
   x = 970,735,711.85/37,139.31
6. Step 6: Final answer
   x = 26,137.69