Finding the Fourth Proportional to 82,328.32, 123,492.42 and 19,998.76

Step by Step Solution

1. Step 1: Write the proportion equation
   82,328.32 : 123,492.42 = 19,998.76 : x
2. Step 2: Convert to fraction form
   82,328.32/123,492.42 = 19,998.76/x
3. Step 3: Cross multiply
   82,328.32x = 123,492.42 × 19,998.76
4. Step 4: Simplify right side
   82,328.32x = 2,469,695,269.40
5. Step 5: Solve for x
   x = 2,469,695,269.40/82,328.32
6. Step 6: Final answer
   x = 29,998.13