Finding the Fourth Proportional to 120,820.08, 166,735.32 and 73,082.16

Step by Step Solution

1. Step 1: Write the proportion equation
   120,820.08 : 166,735.32 = 73,082.16 : x
2. Step 2: Convert to fraction form
   120,820.08/166,735.32 = 73,082.16/x
3. Step 3: Cross multiply
   120,820.08x = 166,735.32 × 73,082.16
4. Step 4: Simplify right side
   120,820.08x = 12,185,377,333.89
5. Step 5: Solve for x
   x = 12,185,377,333.89/120,820.08
6. Step 6: Final answer
   x = 100,855.56