Finding the Fourth Proportional to 303,111.72, 418,285.02 and 167,145.60

Step by Step Solution

1. Step 1: Write the proportion equation
   303,111.72 : 418,285.02 = 167,145.60 : x
2. Step 2: Convert to fraction form
   303,111.72/418,285.02 = 167,145.60/x
3. Step 3: Cross multiply
   303,111.72x = 418,285.02 × 167,145.60
4. Step 4: Simplify right side
   303,111.72x = 69,914,500,638.91
5. Step 5: Solve for x
   x = 69,914,500,638.91/303,111.72
6. Step 6: Final answer
   x = 230,655.88