Finding the Fourth Proportional to 303,158.98, 454,738.15 and 81,542.98

Step by Step Solution

1. Step 1: Write the proportion equation
   303,158.98 : 454,738.15 = 81,542.98 : x
2. Step 2: Convert to fraction form
   303,158.98/454,738.15 = 81,542.98/x
3. Step 3: Cross multiply
   303,158.98x = 454,738.15 × 81,542.98
4. Step 4: Simplify right side
   303,158.98x = 37,080,703,870.69
5. Step 5: Solve for x
   x = 37,080,703,870.69/303,158.98
6. Step 6: Final answer
   x = 122,314.38