Finding the Fourth Proportional to 10,686.00, 16,026.73 and 7,557.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.00 : 16,026.73 = 7,557.18 : x
2. Step 2: Convert to fraction form
   10,686.00/16,026.73 = 7,557.18/x
3. Step 3: Cross multiply
   10,686.00x = 16,026.73 × 7,557.18
4. Step 4: Simplify right side
   10,686.00x = 121,116,804.43
5. Step 5: Solve for x
   x = 121,116,804.43/10,686.00
6. Step 6: Final answer
   x = 11,334.15