Finding the Fourth Proportional to 243,002, 335,375.16 and 142,400

Step by Step Solution

1. Step 1: Write the proportion equation
   243,002 : 335,375.16 = 142,400 : x
2. Step 2: Convert to fraction form
   243,002/335,375.16 = 142,400/x
3. Step 3: Cross multiply
   243,002x = 335,375.16 × 142,400
4. Step 4: Simplify right side
   243,002x = 47,757,422,784
5. Step 5: Solve for x
   x = 47,757,422,784/243,002
6. Step 6: Final answer
   x = 196,530.99