Finding the Fourth Proportional to 312,196.28, 468,540.72 and 160,387.29

Step by Step Solution

1. Step 1: Write the proportion equation
   312,196.28 : 468,540.72 = 160,387.29 : x
2. Step 2: Convert to fraction form
   312,196.28/468,540.72 = 160,387.29/x
3. Step 3: Cross multiply
   312,196.28x = 468,540.72 × 160,387.29
4. Step 4: Simplify right side
   312,196.28x = 75,147,976,335.45
5. Step 5: Solve for x
   x = 75,147,976,335.45/312,196.28
6. Step 6: Final answer
   x = 240,707.47