Finding the Fourth Proportional to 82,329.32, 123,493.92 and 19,999.76

Step by Step Solution

1. Step 1: Write the proportion equation
   82,329.32 : 123,493.92 = 19,999.76 : x
2. Step 2: Convert to fraction form
   82,329.32/123,493.92 = 19,999.76/x
3. Step 3: Cross multiply
   82,329.32x = 123,493.92 × 19,999.76
4. Step 4: Simplify right side
   82,329.32x = 2,469,848,761.46
5. Step 5: Solve for x
   x = 2,469,848,761.46/82,329.32
6. Step 6: Final answer
   x = 29,999.63