Finding the Fourth Proportional to 110,404.60, 165,436.80 and 82,192.30

Step by Step Solution

1. Step 1: Write the proportion equation
   110,404.60 : 165,436.80 = 82,192.30 : x
2. Step 2: Convert to fraction form
   110,404.60/165,436.80 = 82,192.30/x
3. Step 3: Cross multiply
   110,404.60x = 165,436.80 × 82,192.30
4. Step 4: Simplify right side
   110,404.60x = 13,597,631,096.64
5. Step 5: Solve for x
   x = 13,597,631,096.64/110,404.60
6. Step 6: Final answer
   x = 123,161.82