Finding the Fourth Proportional to 82,099.50, 123,149.28 and 19,770

Step by Step Solution

1. Step 1: Write the proportion equation
   82,099.50 : 123,149.28 = 19,770 : x
2. Step 2: Convert to fraction form
   82,099.50/123,149.28 = 19,770/x
3. Step 3: Cross multiply
   82,099.50x = 123,149.28 × 19,770
4. Step 4: Simplify right side
   82,099.50x = 2,434,661,265.60
5. Step 5: Solve for x
   x = 2,434,661,265.60/82,099.50
6. Step 6: Final answer
   x = 29,655.01