Finding the Fourth Proportional to 269,816.78, 372,395.89 and 160,928.10

Step by Step Solution

1. Step 1: Write the proportion equation
   269,816.78 : 372,395.89 = 160,928.10 : x
2. Step 2: Convert to fraction form
   269,816.78/372,395.89 = 160,928.10/x
3. Step 3: Cross multiply
   269,816.78x = 372,395.89 × 160,928.10
4. Step 4: Simplify right side
   269,816.78x = 59,928,963,025.51
5. Step 5: Solve for x
   x = 59,928,963,025.51/269,816.78
6. Step 6: Final answer
   x = 222,109.84