Finding the Fourth Proportional to 13,046.87, 18,003.57 and 7,381.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,046.87 : 18,003.57 = 7,381.32 : x
2. Step 2: Convert to fraction form
   13,046.87/18,003.57 = 7,381.32/x
3. Step 3: Cross multiply
   13,046.87x = 18,003.57 × 7,381.32
4. Step 4: Simplify right side
   13,046.87x = 132,890,111.31
5. Step 5: Solve for x
   x = 132,890,111.31/13,046.87
6. Step 6: Final answer
   x = 10,185.60