Finding the Fourth Proportional to 200,665.20, 276,907.40 and 114,607.27

Step by Step Solution

1. Step 1: Write the proportion equation
   200,665.20 : 276,907.40 = 114,607.27 : x
2. Step 2: Convert to fraction form
   200,665.20/276,907.40 = 114,607.27/x
3. Step 3: Cross multiply
   200,665.20x = 276,907.40 × 114,607.27
4. Step 4: Simplify right side
   200,665.20x = 31,735,601,359.67
5. Step 5: Solve for x
   x = 31,735,601,359.67/200,665.20
6. Step 6: Final answer
   x = 158,151.99