Finding the Fourth Proportional to 143,722.10, 200,948.50 and 143,722.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,722.10 : 200,948.50 = 143,722.10 : x
2. Step 2: Convert to fraction form
   143,722.10/200,948.50 = 143,722.10/x
3. Step 3: Cross multiply
   143,722.10x = 200,948.50 × 143,722.10
4. Step 4: Simplify right side
   143,722.10x = 28,880,740,411.85
5. Step 5: Solve for x
   x = 28,880,740,411.85/143,722.10
6. Step 6: Final answer
   x = 200,948.50