Finding the Fourth Proportional to 168,096.57, 231,970.23 and 91,616.37

Step by Step Solution

1. Step 1: Write the proportion equation
   168,096.57 : 231,970.23 = 91,616.37 : x
2. Step 2: Convert to fraction form
   168,096.57/231,970.23 = 91,616.37/x
3. Step 3: Cross multiply
   168,096.57x = 231,970.23 × 91,616.37
4. Step 4: Simplify right side
   168,096.57x = 21,252,269,550.78
5. Step 5: Solve for x
   x = 21,252,269,550.78/168,096.57
6. Step 6: Final answer
   x = 126,428.93