Finding the Fourth Proportional to 142,080.67, 213,156.11 and 42,240.43

Step by Step Solution

1. Step 1: Write the proportion equation
   142,080.67 : 213,156.11 = 42,240.43 : x
2. Step 2: Convert to fraction form
   142,080.67/213,156.11 = 42,240.43/x
3. Step 3: Cross multiply
   142,080.67x = 213,156.11 × 42,240.43
4. Step 4: Simplify right side
   142,080.67x = 9,003,805,743.53
5. Step 5: Solve for x
   x = 9,003,805,743.53/142,080.67
6. Step 6: Final answer
   x = 63,371.08