Finding the Fourth Proportional to 13,105.94, 18,086.63 and 7,440.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,105.94 : 18,086.63 = 7,440.93 : x
2. Step 2: Convert to fraction form
   13,105.94/18,086.63 = 7,440.93/x
3. Step 3: Cross multiply
   13,105.94x = 18,086.63 × 7,440.93
4. Step 4: Simplify right side
   13,105.94x = 134,581,310.56
5. Step 5: Solve for x
   x = 134,581,310.56/13,105.94
6. Step 6: Final answer
   x = 10,268.73