Finding the Fourth Proportional to 199,931.34, 275,905.25 and 109,287.68

Step by Step Solution

1. Step 1: Write the proportion equation
   199,931.34 : 275,905.25 = 109,287.68 : x
2. Step 2: Convert to fraction form
   199,931.34/275,905.25 = 109,287.68/x
3. Step 3: Cross multiply
   199,931.34x = 275,905.25 × 109,287.68
4. Step 4: Simplify right side
   199,931.34x = 30,153,042,746.36
5. Step 5: Solve for x
   x = 30,153,042,746.36/199,931.34
6. Step 6: Final answer
   x = 150,816.99