Finding the Fourth Proportional to 42,039.31, 57,981.43 and 26,933.37

Step by Step Solution

1. Step 1: Write the proportion equation
   42,039.31 : 57,981.43 = 26,933.37 : x
2. Step 2: Convert to fraction form
   42,039.31/57,981.43 = 26,933.37/x
3. Step 3: Cross multiply
   42,039.31x = 57,981.43 × 26,933.37
4. Step 4: Simplify right side
   42,039.31x = 1,561,635,307.32
5. Step 5: Solve for x
   x = 1,561,635,307.32/42,039.31
6. Step 6: Final answer
   x = 37,147.03