Finding the Fourth Proportional to 303,150.31, 454,723.65 and 78,510.18

Step by Step Solution

1. Step 1: Write the proportion equation
   303,150.31 : 454,723.65 = 78,510.18 : x
2. Step 2: Convert to fraction form
   303,150.31/454,723.65 = 78,510.18/x
3. Step 3: Cross multiply
   303,150.31x = 454,723.65 × 78,510.18
4. Step 4: Simplify right side
   303,150.31x = 35,700,434,082.40
5. Step 5: Solve for x
   x = 35,700,434,082.40/303,150.31
6. Step 6: Final answer
   x = 117,764.79