Finding the Fourth Proportional to 42,361.02, 63,500.22 and 20,168.44

Step by Step Solution

1. Step 1: Write the proportion equation
   42,361.02 : 63,500.22 = 20,168.44 : x
2. Step 2: Convert to fraction form
   42,361.02/63,500.22 = 20,168.44/x
3. Step 3: Cross multiply
   42,361.02x = 63,500.22 × 20,168.44
4. Step 4: Simplify right side
   42,361.02x = 1,280,700,377.06
5. Step 5: Solve for x
   x = 1,280,700,377.06/42,361.02
6. Step 6: Final answer
   x = 30,232.99