Finding the Fourth Proportional to 162,256, 223,913.28 and 91,600

Step by Step Solution

1. Step 1: Write the proportion equation
   162,256 : 223,913.28 = 91,600 : x
2. Step 2: Convert to fraction form
   162,256/223,913.28 = 91,600/x
3. Step 3: Cross multiply
   162,256x = 223,913.28 × 91,600
4. Step 4: Simplify right side
   162,256x = 20,510,456,448
5. Step 5: Solve for x
   x = 20,510,456,448/162,256
6. Step 6: Final answer
   x = 126,408