Finding the Fourth Proportional to 143,613, 198,190.50 and 89,880.84

Step by Step Solution

1. Step 1: Write the proportion equation
   143,613 : 198,190.50 = 89,880.84 : x
2. Step 2: Convert to fraction form
   143,613/198,190.50 = 89,880.84/x
3. Step 3: Cross multiply
   143,613x = 198,190.50 × 89,880.84
4. Step 4: Simplify right side
   143,613x = 17,813,528,620.02
5. Step 5: Solve for x
   x = 17,813,528,620.02/143,613
6. Step 6: Final answer
   x = 124,038.41