Finding the Fourth Proportional to 168,401.37, 232,390.38 and 91,921.98

Step by Step Solution

1. Step 1: Write the proportion equation
   168,401.37 : 232,390.38 = 91,921.98 : x
2. Step 2: Convert to fraction form
   168,401.37/232,390.38 = 91,921.98/x
3. Step 3: Cross multiply
   168,401.37x = 232,390.38 × 91,921.98
4. Step 4: Simplify right side
   168,401.37x = 21,361,783,862.55
5. Step 5: Solve for x
   x = 21,361,783,862.55/168,401.37
6. Step 6: Final answer
   x = 126,850.42