Finding the Fourth Proportional to 142,038.50, 213,021 and 42,176.07

Step by Step Solution

1. Step 1: Write the proportion equation
   142,038.50 : 213,021 = 42,176.07 : x
2. Step 2: Convert to fraction form
   142,038.50/213,021 = 42,176.07/x
3. Step 3: Cross multiply
   142,038.50x = 213,021 × 42,176.07
4. Step 4: Simplify right side
   142,038.50x = 8,984,388,607.47
5. Step 5: Solve for x
   x = 8,984,388,607.47/142,038.50
6. Step 6: Final answer
   x = 63,253.19