Finding the Fourth Proportional to 166,522.50, 229,801.23 and 91,071.18

Step by Step Solution

1. Step 1: Write the proportion equation
   166,522.50 : 229,801.23 = 91,071.18 : x
2. Step 2: Convert to fraction form
   166,522.50/229,801.23 = 91,071.18/x
3. Step 3: Cross multiply
   166,522.50x = 229,801.23 × 91,071.18
4. Step 4: Simplify right side
   166,522.50x = 20,928,269,181.55
5. Step 5: Solve for x
   x = 20,928,269,181.55/166,522.50
6. Step 6: Final answer
   x = 125,678.33