Finding the Fourth Proportional to 52,438.22, 72,362.52 and 28,565.09

Step by Step Solution

1. Step 1: Write the proportion equation
   52,438.22 : 72,362.52 = 28,565.09 : x
2. Step 2: Convert to fraction form
   52,438.22/72,362.52 = 28,565.09/x
3. Step 3: Cross multiply
   52,438.22x = 72,362.52 × 28,565.09
4. Step 4: Simplify right side
   52,438.22x = 2,067,041,896.43
5. Step 5: Solve for x
   x = 2,067,041,896.43/52,438.22
6. Step 6: Final answer
   x = 39,418.61