Finding the Fourth Proportional to 99,538.78, 149,290.89 and 33,874.78

Step by Step Solution

1. Step 1: Write the proportion equation
   99,538.78 : 149,290.89 = 33,874.78 : x
2. Step 2: Convert to fraction form
   99,538.78/149,290.89 = 33,874.78/x
3. Step 3: Cross multiply
   99,538.78x = 149,290.89 × 33,874.78
4. Step 4: Simplify right side
   99,538.78x = 5,057,196,054.75
5. Step 5: Solve for x
   x = 5,057,196,054.75/99,538.78
6. Step 6: Final answer
   x = 50,806.29