Finding the Fourth Proportional to 21,763.47, 30,018.03 and 19,976.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,763.47 : 30,018.03 = 19,976.62 : x
2. Step 2: Convert to fraction form
   21,763.47/30,018.03 = 19,976.62/x
3. Step 3: Cross multiply
   21,763.47x = 30,018.03 × 19,976.62
4. Step 4: Simplify right side
   21,763.47x = 599,658,778.46
5. Step 5: Solve for x
   x = 599,658,778.46/21,763.47
6. Step 6: Final answer
   x = 27,553.45