Finding the Fourth Proportional to 120,667.41, 166,518.89 and 66,951.50

Step by Step Solution

1. Step 1: Write the proportion equation
   120,667.41 : 166,518.89 = 66,951.50 : x
2. Step 2: Convert to fraction form
   120,667.41/166,518.89 = 66,951.50/x
3. Step 3: Cross multiply
   120,667.41x = 166,518.89 × 66,951.50
4. Step 4: Simplify right side
   120,667.41x = 11,148,688,296.48
5. Step 5: Solve for x
   x = 11,148,688,296.48/120,667.41
6. Step 6: Final answer
   x = 92,391.88