Finding the Fourth Proportional to 143,938.79, 198,715.83 and 101,049.89

Step by Step Solution

1. Step 1: Write the proportion equation
   143,938.79 : 198,715.83 = 101,049.89 : x
2. Step 2: Convert to fraction form
   143,938.79/198,715.83 = 101,049.89/x
3. Step 3: Cross multiply
   143,938.79x = 198,715.83 × 101,049.89
4. Step 4: Simplify right side
   143,938.79x = 20,080,212,762.76
5. Step 5: Solve for x
   x = 20,080,212,762.76/143,938.79
6. Step 6: Final answer
   x = 139,505.22