Finding the Fourth Proportional to 37,738.07, 52,078.58 and 20,742.31

Step by Step Solution

1. Step 1: Write the proportion equation
   37,738.07 : 52,078.58 = 20,742.31 : x
2. Step 2: Convert to fraction form
   37,738.07/52,078.58 = 20,742.31/x
3. Step 3: Cross multiply
   37,738.07x = 52,078.58 × 20,742.31
4. Step 4: Simplify right side
   37,738.07x = 1,080,230,089.89
5. Step 5: Solve for x
   x = 1,080,230,089.89/37,738.07
6. Step 6: Final answer
   x = 28,624.41