Finding the Fourth Proportional to 82,072.12, 123,108.18 and 19,742.62

Step by Step Solution

1. Step 1: Write the proportion equation
   82,072.12 : 123,108.18 = 19,742.62 : x
2. Step 2: Convert to fraction form
   82,072.12/123,108.18 = 19,742.62/x
3. Step 3: Cross multiply
   82,072.12x = 123,108.18 × 19,742.62
4. Step 4: Simplify right side
   82,072.12x = 2,430,478,016.63
5. Step 5: Solve for x
   x = 2,430,478,016.63/82,072.12
6. Step 6: Final answer
   x = 29,613.93