Finding the Fourth Proportional to 199,089.25, 274,743.18 and 109,665.25

Step by Step Solution

1. Step 1: Write the proportion equation
   199,089.25 : 274,743.18 = 109,665.25 : x
2. Step 2: Convert to fraction form
   199,089.25/274,743.18 = 109,665.25/x
3. Step 3: Cross multiply
   199,089.25x = 274,743.18 × 109,665.25
4. Step 4: Simplify right side
   199,089.25x = 30,129,779,520.50
5. Step 5: Solve for x
   x = 30,129,779,520.50/199,089.25
6. Step 6: Final answer
   x = 151,338.05