Finding the Fourth Proportional to 11,131.35, 16,694.42 and 5,212.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,131.35 : 16,694.42 = 5,212.32 : x
2. Step 2: Convert to fraction form
   11,131.35/16,694.42 = 5,212.32/x
3. Step 3: Cross multiply
   11,131.35x = 16,694.42 × 5,212.32
4. Step 4: Simplify right side
   11,131.35x = 87,016,633.19
5. Step 5: Solve for x
   x = 87,016,633.19/11,131.35
6. Step 6: Final answer
   x = 7,817.26