Finding the Fourth Proportional to 16,293.90, 22,490.04 and 15,185.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,293.90 : 22,490.04 = 15,185.82 : x
2. Step 2: Convert to fraction form
   16,293.90/22,490.04 = 15,185.82/x
3. Step 3: Cross multiply
   16,293.90x = 22,490.04 × 15,185.82
4. Step 4: Simplify right side
   16,293.90x = 341,529,699.23
5. Step 5: Solve for x
   x = 341,529,699.23/16,293.90
6. Step 6: Final answer
   x = 20,960.59