Finding the Fourth Proportional to 483,142.82, 724,428.03 and 146,081.30

Step by Step Solution

1. Step 1: Write the proportion equation
   483,142.82 : 724,428.03 = 146,081.30 : x
2. Step 2: Convert to fraction form
   483,142.82/724,428.03 = 146,081.30/x
3. Step 3: Cross multiply
   483,142.82x = 724,428.03 × 146,081.30
4. Step 4: Simplify right side
   483,142.82x = 105,825,388,378.84
5. Step 5: Solve for x
   x = 105,825,388,378.84/483,142.82
6. Step 6: Final answer
   x = 219,035.42