Finding the Fourth Proportional to 303,061.23, 454,493.43 and 143,112.42

Step by Step Solution

1. Step 1: Write the proportion equation
   303,061.23 : 454,493.43 = 143,112.42 : x
2. Step 2: Convert to fraction form
   303,061.23/454,493.43 = 143,112.42/x
3. Step 3: Cross multiply
   303,061.23x = 454,493.43 × 143,112.42
4. Step 4: Simplify right side
   303,061.23x = 65,043,654,641.40
5. Step 5: Solve for x
   x = 65,043,654,641.40/303,061.23
6. Step 6: Final answer
   x = 214,622.16