Finding the Fourth Proportional to 10,853.52, 16,268.32 and 7,100.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,853.52 : 16,268.32 = 7,100.79 : x
2. Step 2: Convert to fraction form
   10,853.52/16,268.32 = 7,100.79/x
3. Step 3: Cross multiply
   10,853.52x = 16,268.32 × 7,100.79
4. Step 4: Simplify right side
   10,853.52x = 115,517,923.97
5. Step 5: Solve for x
   x = 115,517,923.97/10,853.52
6. Step 6: Final answer
   x = 10,643.36