Finding the Fourth Proportional to 219,906.80, 303,500.00 and 123,147.54

Step by Step Solution

1. Step 1: Write the proportion equation
   219,906.80 : 303,500.00 = 123,147.54 : x
2. Step 2: Convert to fraction form
   219,906.80/303,500.00 = 123,147.54/x
3. Step 3: Cross multiply
   219,906.80x = 303,500.00 × 123,147.54
4. Step 4: Simplify right side
   219,906.80x = 37,375,276,256.76
5. Step 5: Solve for x
   x = 37,375,276,256.76/219,906.80
6. Step 6: Final answer
   x = 169,959.62