Finding the Fourth Proportional to 120,548.72, 166,493.41 and 82,242.47

Step by Step Solution

1. Step 1: Write the proportion equation
   120,548.72 : 166,493.41 = 82,242.47 : x
2. Step 2: Convert to fraction form
   120,548.72/166,493.41 = 82,242.47/x
3. Step 3: Cross multiply
   120,548.72x = 166,493.41 × 82,242.47
4. Step 4: Simplify right side
   120,548.72x = 13,692,829,487.75
5. Step 5: Solve for x
   x = 13,692,829,487.75/120,548.72
6. Step 6: Final answer
   x = 113,587.51