Finding the Fourth Proportional to 35,772.30, 49,372.98 and 20,667.42

Step by Step Solution

1. Step 1: Write the proportion equation
   35,772.30 : 49,372.98 = 20,667.42 : x
2. Step 2: Convert to fraction form
   35,772.30/49,372.98 = 20,667.42/x
3. Step 3: Cross multiply
   35,772.30x = 49,372.98 × 20,667.42
4. Step 4: Simplify right side
   35,772.30x = 1,020,412,114.31
5. Step 5: Solve for x
   x = 1,020,412,114.31/35,772.30
6. Step 6: Final answer
   x = 28,525.20