Finding the Fourth Proportional to 52,443.23, 72,371.78 and 28,570.07

Step by Step Solution

1. Step 1: Write the proportion equation
   52,443.23 : 72,371.78 = 28,570.07 : x
2. Step 2: Convert to fraction form
   52,443.23/72,371.78 = 28,570.07/x
3. Step 3: Cross multiply
   52,443.23x = 72,371.78 × 28,570.07
4. Step 4: Simplify right side
   52,443.23x = 2,067,667,072.98
5. Step 5: Solve for x
   x = 2,067,667,072.98/52,443.23
6. Step 6: Final answer
   x = 39,426.77