Finding the Fourth Proportional to 219,986.52, 303,585.69 and 143,554.52

Step by Step Solution

1. Step 1: Write the proportion equation
   219,986.52 : 303,585.69 = 143,554.52 : x
2. Step 2: Convert to fraction form
   219,986.52/303,585.69 = 143,554.52/x
3. Step 3: Cross multiply
   219,986.52x = 303,585.69 × 143,554.52
4. Step 4: Simplify right side
   219,986.52x = 43,581,096,488.89
5. Step 5: Solve for x
   x = 43,581,096,488.89/219,986.52
6. Step 6: Final answer
   x = 198,108.03