Finding the Fourth Proportional to 12,337.74, 18,477.18 and 7,127.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,337.74 : 18,477.18 = 7,127.82 : x
2. Step 2: Convert to fraction form
   12,337.74/18,477.18 = 7,127.82/x
3. Step 3: Cross multiply
   12,337.74x = 18,477.18 × 7,127.82
4. Step 4: Simplify right side
   12,337.74x = 131,702,013.15
5. Step 5: Solve for x
   x = 131,702,013.15/12,337.74
6. Step 6: Final answer
   x = 10,674.73