Finding the Fourth Proportional to 48,839.40, 73,404.90 and 42,424.20

Step by Step Solution

1. Step 1: Write the proportion equation
   48,839.40 : 73,404.90 = 42,424.20 : x
2. Step 2: Convert to fraction form
   48,839.40/73,404.90 = 42,424.20/x
3. Step 3: Cross multiply
   48,839.40x = 73,404.90 × 42,424.20
4. Step 4: Simplify right side
   48,839.40x = 3,114,144,158.58
5. Step 5: Solve for x
   x = 3,114,144,158.58/48,839.40
6. Step 6: Final answer
   x = 63,762.95