Finding the Fourth Proportional to 142,290.02, 213,466.72 and 42,451.94

Step by Step Solution

1. Step 1: Write the proportion equation
   142,290.02 : 213,466.72 = 42,451.94 : x
2. Step 2: Convert to fraction form
   142,290.02/213,466.72 = 42,451.94/x
3. Step 3: Cross multiply
   142,290.02x = 213,466.72 × 42,451.94
4. Step 4: Simplify right side
   142,290.02x = 9,062,076,389.44
5. Step 5: Solve for x
   x = 9,062,076,389.44/142,290.02
6. Step 6: Final answer
   x = 63,687.36