Finding the Fourth Proportional to 147,929.50, 204,142.72 and 80,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,929.50 : 204,142.72 = 80,861.50 : x
2. Step 2: Convert to fraction form
   147,929.50/204,142.72 = 80,861.50/x
3. Step 3: Cross multiply
   147,929.50x = 204,142.72 × 80,861.50
4. Step 4: Simplify right side
   147,929.50x = 16,507,286,553.28
5. Step 5: Solve for x
   x = 16,507,286,553.28/147,929.50
6. Step 6: Final answer
   x = 111,588.88