Finding the Fourth Proportional to 147,799.69, 203,964.38 and 80,731.69

Step by Step Solution

1. Step 1: Write the proportion equation
   147,799.69 : 203,964.38 = 80,731.69 : x
2. Step 2: Convert to fraction form
   147,799.69/203,964.38 = 80,731.69/x
3. Step 3: Cross multiply
   147,799.69x = 203,964.38 × 80,731.69
4. Step 4: Simplify right side
   147,799.69x = 16,466,388,486.38
5. Step 5: Solve for x
   x = 16,466,388,486.38/147,799.69
6. Step 6: Final answer
   x = 111,410.17