Finding the Fourth Proportional to 262,805, 362,672.52 and 143,573

Step by Step Solution

1. Step 1: Write the proportion equation
   262,805 : 362,672.52 = 143,573 : x
2. Step 2: Convert to fraction form
   262,805/362,672.52 = 143,573/x
3. Step 3: Cross multiply
   262,805x = 362,672.52 × 143,573
4. Step 4: Simplify right side
   262,805x = 52,069,981,713.96
5. Step 5: Solve for x
   x = 52,069,981,713.96/262,805
6. Step 6: Final answer
   x = 198,131.63