Finding the Fourth Proportional to 12,060.19, 18,078.27 and 5,818.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,060.19 : 18,078.27 = 5,818.42 : x
2. Step 2: Convert to fraction form
   12,060.19/18,078.27 = 5,818.42/x
3. Step 3: Cross multiply
   12,060.19x = 18,078.27 × 5,818.42
4. Step 4: Simplify right side
   12,060.19x = 105,186,967.73
5. Step 5: Solve for x
   x = 105,186,967.73/12,060.19
6. Step 6: Final answer
   x = 8,721.83