Finding the Fourth Proportional to 11,116.15, 16,655.71 and 7,822.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,116.15 : 16,655.71 = 7,822.32 : x
2. Step 2: Convert to fraction form
   11,116.15/16,655.71 = 7,822.32/x
3. Step 3: Cross multiply
   11,116.15x = 16,655.71 × 7,822.32
4. Step 4: Simplify right side
   11,116.15x = 130,286,293.45
5. Step 5: Solve for x
   x = 130,286,293.45/11,116.15
6. Step 6: Final answer
   x = 11,720.45