Finding the Fourth Proportional to 13,114.71, 18,093.78 and 9,134.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,114.71 : 18,093.78 = 9,134.37 : x
2. Step 2: Convert to fraction form
   13,114.71/18,093.78 = 9,134.37/x
3. Step 3: Cross multiply
   13,114.71x = 18,093.78 × 9,134.37
4. Step 4: Simplify right side
   13,114.71x = 165,275,281.22
5. Step 5: Solve for x
   x = 165,275,281.22/13,114.71
6. Step 6: Final answer
   x = 12,602.28