Finding the Fourth Proportional to 144,270.67, 199,037.10 and 83,830.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,270.67 : 199,037.10 = 83,830.50 : x
2. Step 2: Convert to fraction form
   144,270.67/199,037.10 = 83,830.50/x
3. Step 3: Cross multiply
   144,270.67x = 199,037.10 × 83,830.50
4. Step 4: Simplify right side
   144,270.67x = 16,685,379,611.55
5. Step 5: Solve for x
   x = 16,685,379,611.55/144,270.67
6. Step 6: Final answer
   x = 115,653.30