Finding the Fourth Proportional to 13,309.58, 18,367.61 and 7,340.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,309.58 : 18,367.61 = 7,340.96 : x
2. Step 2: Convert to fraction form
   13,309.58/18,367.61 = 7,340.96/x
3. Step 3: Cross multiply
   13,309.58x = 18,367.61 × 7,340.96
4. Step 4: Simplify right side
   13,309.58x = 134,835,761.76
5. Step 5: Solve for x
   x = 134,835,761.76/13,309.58
6. Step 6: Final answer
   x = 10,130.73