Finding the Fourth Proportional to 120,364.46, 166,101.76 and 65,173.53

Step by Step Solution

1. Step 1: Write the proportion equation
   120,364.46 : 166,101.76 = 65,173.53 : x
2. Step 2: Convert to fraction form
   120,364.46/166,101.76 = 65,173.53/x
3. Step 3: Cross multiply
   120,364.46x = 166,101.76 × 65,173.53
4. Step 4: Simplify right side
   120,364.46x = 10,825,438,038.41
5. Step 5: Solve for x
   x = 10,825,438,038.41/120,364.46
6. Step 6: Final answer
   x = 89,938.82