Finding the Fourth Proportional to 384,505.98, 576,772.82 and 144,597.89

Step by Step Solution

1. Step 1: Write the proportion equation
   384,505.98 : 576,772.82 = 144,597.89 : x
2. Step 2: Convert to fraction form
   384,505.98/576,772.82 = 144,597.89/x
3. Step 3: Cross multiply
   384,505.98x = 576,772.82 × 144,597.89
4. Step 4: Simplify right side
   384,505.98x = 83,400,129,174.50
5. Step 5: Solve for x
   x = 83,400,129,174.50/384,505.98
6. Step 6: Final answer
   x = 216,902.03