Finding the Fourth Proportional to 11,121.27, 16,664.62 and 7,008.63

Step by Step Solution

1. Step 1: Write the proportion equation
   11,121.27 : 16,664.62 = 7,008.63 : x
2. Step 2: Convert to fraction form
   11,121.27/16,664.62 = 7,008.63/x
3. Step 3: Cross multiply
   11,121.27x = 16,664.62 × 7,008.63
4. Step 4: Simplify right side
   11,121.27x = 116,796,054.83
5. Step 5: Solve for x
   x = 116,796,054.83/11,121.27
6. Step 6: Final answer
   x = 10,502.05