Finding the Fourth Proportional to 37,978.96, 57,004.19 and 19,272.42

Step by Step Solution

1. Step 1: Write the proportion equation
   37,978.96 : 57,004.19 = 19,272.42 : x
2. Step 2: Convert to fraction form
   37,978.96/57,004.19 = 19,272.42/x
3. Step 3: Cross multiply
   37,978.96x = 57,004.19 × 19,272.42
4. Step 4: Simplify right side
   37,978.96x = 1,098,608,691.44
5. Step 5: Solve for x
   x = 1,098,608,691.44/37,978.96
6. Step 6: Final answer
   x = 28,926.77