Finding the Fourth Proportional to 199,839.48, 275,788.98 and 114,969.30

Step by Step Solution

1. Step 1: Write the proportion equation
   199,839.48 : 275,788.98 = 114,969.30 : x
2. Step 2: Convert to fraction form
   199,839.48/275,788.98 = 114,969.30/x
3. Step 3: Cross multiply
   199,839.48x = 275,788.98 × 114,969.30
4. Step 4: Simplify right side
   199,839.48x = 31,707,265,978.31
5. Step 5: Solve for x
   x = 31,707,265,978.31/199,839.48
6. Step 6: Final answer
   x = 158,663.67