Finding the Fourth Proportional to 143,216.10, 200,240.10 and 143,216.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,216.10 : 200,240.10 = 143,216.10 : x
2. Step 2: Convert to fraction form
   143,216.10/200,240.10 = 143,216.10/x
3. Step 3: Cross multiply
   143,216.10x = 200,240.10 × 143,216.10
4. Step 4: Simplify right side
   143,216.10x = 28,677,606,185.61
5. Step 5: Solve for x
   x = 28,677,606,185.61/143,216.10
6. Step 6: Final answer
   x = 200,240.10