Finding the Fourth Proportional to 13,046.25, 18,003.58 and 7,380.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,046.25 : 18,003.58 = 7,380.77 : x
2. Step 2: Convert to fraction form
   13,046.25/18,003.58 = 7,380.77/x
3. Step 3: Cross multiply
   13,046.25x = 18,003.58 × 7,380.77
4. Step 4: Simplify right side
   13,046.25x = 132,880,309.71
5. Step 5: Solve for x
   x = 132,880,309.71/13,046.25
6. Step 6: Final answer
   x = 10,185.33