Finding the Fourth Proportional to 12,300.98, 18,454.17 and 3,981.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.98 : 18,454.17 = 3,981.84 : x
2. Step 2: Convert to fraction form
   12,300.98/18,454.17 = 3,981.84/x
3. Step 3: Cross multiply
   12,300.98x = 18,454.17 × 3,981.84
4. Step 4: Simplify right side
   12,300.98x = 73,481,552.27
5. Step 5: Solve for x
   x = 73,481,552.27/12,300.98
6. Step 6: Final answer
   x = 5,973.64