Finding the Fourth Proportional to 52,443.48, 72,371.72 and 28,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   52,443.48 : 72,371.72 = 28,570.10 : x
2. Step 2: Convert to fraction form
   52,443.48/72,371.72 = 28,570.10/x
3. Step 3: Cross multiply
   52,443.48x = 72,371.72 × 28,570.10
4. Step 4: Simplify right side
   52,443.48x = 2,067,667,277.57
5. Step 5: Solve for x
   x = 2,067,667,277.57/52,443.48
6. Step 6: Final answer
   x = 39,426.58