Finding the Fourth Proportional to 45,369.72, 68,046.89 and 12,093.30

Step by Step Solution

1. Step 1: Write the proportion equation
   45,369.72 : 68,046.89 = 12,093.30 : x
2. Step 2: Convert to fraction form
   45,369.72/68,046.89 = 12,093.30/x
3. Step 3: Cross multiply
   45,369.72x = 68,046.89 × 12,093.30
4. Step 4: Simplify right side
   45,369.72x = 822,911,394.37
5. Step 5: Solve for x
   x = 822,911,394.37/45,369.72
6. Step 6: Final answer
   x = 18,137.90