Finding the Fourth Proportional to 37,878.72, 52,271.67 and 20,882.57

Step by Step Solution

1. Step 1: Write the proportion equation
   37,878.72 : 52,271.67 = 20,882.57 : x
2. Step 2: Convert to fraction form
   37,878.72/52,271.67 = 20,882.57/x
3. Step 3: Cross multiply
   37,878.72x = 52,271.67 × 20,882.57
4. Step 4: Simplify right side
   37,878.72x = 1,091,566,713.03
5. Step 5: Solve for x
   x = 1,091,566,713.03/37,878.72
6. Step 6: Final answer
   x = 28,817.41