Finding the Fourth Proportional to 36,820.42, 50,810.37 and 20,902.78

Step by Step Solution

1. Step 1: Write the proportion equation
   36,820.42 : 50,810.37 = 20,902.78 : x
2. Step 2: Convert to fraction form
   36,820.42/50,810.37 = 20,902.78/x
3. Step 3: Cross multiply
   36,820.42x = 50,810.37 × 20,902.78
4. Step 4: Simplify right side
   36,820.42x = 1,062,077,985.83
5. Step 5: Solve for x
   x = 1,062,077,985.83/36,820.42
6. Step 6: Final answer
   x = 28,844.81