Finding the Fourth Proportional to 309,962.98, 464,944.50 and 99,748.54

Step by Step Solution

1. Step 1: Write the proportion equation
   309,962.98 : 464,944.50 = 99,748.54 : x
2. Step 2: Convert to fraction form
   309,962.98/464,944.50 = 99,748.54/x
3. Step 3: Cross multiply
   309,962.98x = 464,944.50 × 99,748.54
4. Step 4: Simplify right side
   309,962.98x = 46,377,535,056.03
5. Step 5: Solve for x
   x = 46,377,535,056.03/309,962.98
6. Step 6: Final answer
   x = 149,622.82