Finding the Fourth Proportional to 11,145.94, 16,714.93 and 5,221.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,145.94 : 16,714.93 = 5,221.82 : x
2. Step 2: Convert to fraction form
   11,145.94/16,714.93 = 5,221.82/x
3. Step 3: Cross multiply
   11,145.94x = 16,714.93 × 5,221.82
4. Step 4: Simplify right side
   11,145.94x = 87,282,355.77
5. Step 5: Solve for x
   x = 87,282,355.77/11,145.94
6. Step 6: Final answer
   x = 7,830.87