Finding the Fourth Proportional to 166,538.82, 229,829.06 and 91,087.32

Step by Step Solution

1. Step 1: Write the proportion equation
   166,538.82 : 229,829.06 = 91,087.32 : x
2. Step 2: Convert to fraction form
   166,538.82/229,829.06 = 91,087.32/x
3. Step 3: Cross multiply
   166,538.82x = 229,829.06 × 91,087.32
4. Step 4: Simplify right side
   166,538.82x = 20,934,513,133.52
5. Step 5: Solve for x
   x = 20,934,513,133.52/166,538.82
6. Step 6: Final answer
   x = 125,703.50