Finding the Fourth Proportional to 12,131.37, 18,186.23 and 4,734.11

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.37 : 18,186.23 = 4,734.11 : x
2. Step 2: Convert to fraction form
   12,131.37/18,186.23 = 4,734.11/x
3. Step 3: Cross multiply
   12,131.37x = 18,186.23 × 4,734.11
4. Step 4: Simplify right side
   12,131.37x = 86,095,498.70
5. Step 5: Solve for x
   x = 86,095,498.70/12,131.37
6. Step 6: Final answer
   x = 7,096.93