Finding the Fourth Proportional to 35,672.61, 49,227.71 and 20,565.30

Step by Step Solution

1. Step 1: Write the proportion equation
   35,672.61 : 49,227.71 = 20,565.30 : x
2. Step 2: Convert to fraction form
   35,672.61/49,227.71 = 20,565.30/x
3. Step 3: Cross multiply
   35,672.61x = 49,227.71 × 20,565.30
4. Step 4: Simplify right side
   35,672.61x = 1,012,382,521.64
5. Step 5: Solve for x
   x = 1,012,382,521.64/35,672.61
6. Step 6: Final answer
   x = 28,379.83