Finding the Fourth Proportional to 37,057.71, 51,139.15 and 21,142.42

Step by Step Solution

1. Step 1: Write the proportion equation
   37,057.71 : 51,139.15 = 21,142.42 : x
2. Step 2: Convert to fraction form
   37,057.71/51,139.15 = 21,142.42/x
3. Step 3: Cross multiply
   37,057.71x = 51,139.15 × 21,142.42
4. Step 4: Simplify right side
   37,057.71x = 1,081,205,387.74
5. Step 5: Solve for x
   x = 1,081,205,387.74/37,057.71
6. Step 6: Final answer
   x = 29,176.26