Finding the Fourth Proportional to 198,962.50, 274,568.34 and 109,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   198,962.50 : 274,568.34 = 109,538.50 : x
2. Step 2: Convert to fraction form
   198,962.50/274,568.34 = 109,538.50/x
3. Step 3: Cross multiply
   198,962.50x = 274,568.34 × 109,538.50
4. Step 4: Simplify right side
   198,962.50x = 30,075,804,111.09
5. Step 5: Solve for x
   x = 30,075,804,111.09/198,962.50
6. Step 6: Final answer
   x = 151,163.18