Finding the Fourth Proportional to 162,680.31, 224,492.31 and 91,067.40

Step by Step Solution

1. Step 1: Write the proportion equation
   162,680.31 : 224,492.31 = 91,067.40 : x
2. Step 2: Convert to fraction form
   162,680.31/224,492.31 = 91,067.40/x
3. Step 3: Cross multiply
   162,680.31x = 224,492.31 × 91,067.40
4. Step 4: Simplify right side
   162,680.31x = 20,443,930,991.69
5. Step 5: Solve for x
   x = 20,443,930,991.69/162,680.31
6. Step 6: Final answer
   x = 125,669.36