Finding the Fourth Proportional to 143,984.79, 198,522.50 and 118,401.75

Step by Step Solution

1. Step 1: Write the proportion equation
   143,984.79 : 198,522.50 = 118,401.75 : x
2. Step 2: Convert to fraction form
   143,984.79/198,522.50 = 118,401.75/x
3. Step 3: Cross multiply
   143,984.79x = 198,522.50 × 118,401.75
4. Step 4: Simplify right side
   143,984.79x = 23,505,410,822.37
5. Step 5: Solve for x
   x = 23,505,410,822.37/143,984.79
6. Step 6: Final answer
   x = 163,249.26