Finding the Fourth Proportional to 21,976.46, 30,327.35 and 12,545.00

Step by Step Solution

1. Step 1: Write the proportion equation
   21,976.46 : 30,327.35 = 12,545.00 : x
2. Step 2: Convert to fraction form
   21,976.46/30,327.35 = 12,545.00/x
3. Step 3: Cross multiply
   21,976.46x = 30,327.35 × 12,545.00
4. Step 4: Simplify right side
   21,976.46x = 380,456,391.39
5. Step 5: Solve for x
   x = 380,456,391.39/21,976.46
6. Step 6: Final answer
   x = 17,312.00