Finding the Fourth Proportional to 166,618.56, 229,932.42 and 91,167.06

Step by Step Solution

1. Step 1: Write the proportion equation
   166,618.56 : 229,932.42 = 91,167.06 : x
2. Step 2: Convert to fraction form
   166,618.56/229,932.42 = 91,167.06/x
3. Step 3: Cross multiply
   166,618.56x = 229,932.42 × 91,167.06
4. Step 4: Simplify right side
   166,618.56x = 20,962,262,730.09
5. Step 5: Solve for x
   x = 20,962,262,730.09/166,618.56
6. Step 6: Final answer
   x = 125,809.89