Finding the Fourth Proportional to 303,061.10, 454,548.45 and 103,390.70

Step by Step Solution

1. Step 1: Write the proportion equation
   303,061.10 : 454,548.45 = 103,390.70 : x
2. Step 2: Convert to fraction form
   303,061.10/454,548.45 = 103,390.70/x
3. Step 3: Cross multiply
   303,061.10x = 454,548.45 × 103,390.70
4. Step 4: Simplify right side
   303,061.10x = 46,996,082,429.42
5. Step 5: Solve for x
   x = 46,996,082,429.42/303,061.10
6. Step 6: Final answer
   x = 155,071.31