Finding the Fourth Proportional to 52,443.35, 72,371.75 and 28,570.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,443.35 : 72,371.75 = 28,570.05 : x
2. Step 2: Convert to fraction form
   52,443.35/72,371.75 = 28,570.05/x
3. Step 3: Cross multiply
   52,443.35x = 72,371.75 × 28,570.05
4. Step 4: Simplify right side
   52,443.35x = 2,067,664,373.24
5. Step 5: Solve for x
   x = 2,067,664,373.24/52,443.35
6. Step 6: Final answer
   x = 39,426.63