Finding the Fourth Proportional to 22,308.08, 30,776.36 and 12,874.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,308.08 : 30,776.36 = 12,874.82 : x
2. Step 2: Convert to fraction form
   22,308.08/30,776.36 = 12,874.82/x
3. Step 3: Cross multiply
   22,308.08x = 30,776.36 × 12,874.82
4. Step 4: Simplify right side
   22,308.08x = 396,240,095.26
5. Step 5: Solve for x
   x = 396,240,095.26/22,308.08
6. Step 6: Final answer
   x = 17,762.18