Finding the Fourth Proportional to 82,213.62, 123,320.49 and 19,884.18

Step by Step Solution

1. Step 1: Write the proportion equation
   82,213.62 : 123,320.49 = 19,884.18 : x
2. Step 2: Convert to fraction form
   82,213.62/123,320.49 = 19,884.18/x
3. Step 3: Cross multiply
   82,213.62x = 123,320.49 × 19,884.18
4. Step 4: Simplify right side
   82,213.62x = 2,452,126,820.85
5. Step 5: Solve for x
   x = 2,452,126,820.85/82,213.62
6. Step 6: Final answer
   x = 29,826.28