Finding the Fourth Proportional to 120,606.86, 166,301.12 and 76,941.18

Step by Step Solution

1. Step 1: Write the proportion equation
   120,606.86 : 166,301.12 = 76,941.18 : x
2. Step 2: Convert to fraction form
   120,606.86/166,301.12 = 76,941.18/x
3. Step 3: Cross multiply
   120,606.86x = 166,301.12 × 76,941.18
4. Step 4: Simplify right side
   120,606.86x = 12,795,404,600.47
5. Step 5: Solve for x
   x = 12,795,404,600.47/120,606.86
6. Step 6: Final answer
   x = 106,091.85