Finding the Fourth Proportional to 12,127.89, 18,175.23 and 7,737.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,127.89 : 18,175.23 = 7,737.48 : x
2. Step 2: Convert to fraction form
   12,127.89/18,175.23 = 7,737.48/x
3. Step 3: Cross multiply
   12,127.89x = 18,175.23 × 7,737.48
4. Step 4: Simplify right side
   12,127.89x = 140,630,478.62
5. Step 5: Solve for x
   x = 140,630,478.62/12,127.89
6. Step 6: Final answer
   x = 11,595.63