Finding the Fourth Proportional to 11,003.31, 16,483.85 and 8,786.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,003.31 : 16,483.85 = 8,786.54 : x
2. Step 2: Convert to fraction form
   11,003.31/16,483.85 = 8,786.54/x
3. Step 3: Cross multiply
   11,003.31x = 16,483.85 × 8,786.54
4. Step 4: Simplify right side
   11,003.31x = 144,835,881.03
5. Step 5: Solve for x
   x = 144,835,881.03/11,003.31
6. Step 6: Final answer
   x = 13,162.94