Finding the Fourth Proportional to 120,736.08, 166,614.52 and 67,019.72

Step by Step Solution

1. Step 1: Write the proportion equation
   120,736.08 : 166,614.52 = 67,019.72 : x
2. Step 2: Convert to fraction form
   120,736.08/166,614.52 = 67,019.72/x
3. Step 3: Cross multiply
   120,736.08x = 166,614.52 × 67,019.72
4. Step 4: Simplify right side
   120,736.08x = 11,166,458,478.33
5. Step 5: Solve for x
   x = 11,166,458,478.33/120,736.08
6. Step 6: Final answer
   x = 92,486.51