Finding the Fourth Proportional to 167,116.50, 230,624.55 and 91,665

Step by Step Solution

1. Step 1: Write the proportion equation
   167,116.50 : 230,624.55 = 91,665 : x
2. Step 2: Convert to fraction form
   167,116.50/230,624.55 = 91,665/x
3. Step 3: Cross multiply
   167,116.50x = 230,624.55 × 91,665
4. Step 4: Simplify right side
   167,116.50x = 21,140,199,375.75
5. Step 5: Solve for x
   x = 21,140,199,375.75/167,116.50
6. Step 6: Final answer
   x = 126,499.77