Finding the Fourth Proportional to 120,826.71, 166,740.88 and 67,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   120,826.71 : 166,740.88 = 67,116.72 : x
2. Step 2: Convert to fraction form
   120,826.71/166,740.88 = 67,116.72/x
3. Step 3: Cross multiply
   120,826.71x = 166,740.88 × 67,116.72
4. Step 4: Simplify right side
   120,826.71x = 11,191,100,955.51
5. Step 5: Solve for x
   x = 11,191,100,955.51/120,826.71
6. Step 6: Final answer
   x = 92,621.08