Finding the Fourth Proportional to 166,510.50, 229,784.67 and 91,059.18

Step by Step Solution

1. Step 1: Write the proportion equation
   166,510.50 : 229,784.67 = 91,059.18 : x
2. Step 2: Convert to fraction form
   166,510.50/229,784.67 = 91,059.18/x
3. Step 3: Cross multiply
   166,510.50x = 229,784.67 × 91,059.18
4. Step 4: Simplify right side
   166,510.50x = 20,924,003,626.77
5. Step 5: Solve for x
   x = 20,924,003,626.77/166,510.50
6. Step 6: Final answer
   x = 125,661.77