Finding the Fourth Proportional to 12,094.50, 18,141.56 and 8,521.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,094.50 : 18,141.56 = 8,521.85 : x
2. Step 2: Convert to fraction form
   12,094.50/18,141.56 = 8,521.85/x
3. Step 3: Cross multiply
   12,094.50x = 18,141.56 × 8,521.85
4. Step 4: Simplify right side
   12,094.50x = 154,599,562.38
5. Step 5: Solve for x
   x = 154,599,562.38/12,094.50
6. Step 6: Final answer
   x = 12,782.63