Finding the Fourth Proportional to 120,402.64, 166,153.82 and 65,954.37

Step by Step Solution

1. Step 1: Write the proportion equation
   120,402.64 : 166,153.82 = 65,954.37 : x
2. Step 2: Convert to fraction form
   120,402.64/166,153.82 = 65,954.37/x
3. Step 3: Cross multiply
   120,402.64x = 166,153.82 × 65,954.37
4. Step 4: Simplify right side
   120,402.64x = 10,958,570,814.50
5. Step 5: Solve for x
   x = 10,958,570,814.50/120,402.64
6. Step 6: Final answer
   x = 91,016.03