Finding the Fourth Proportional to 22,111.08, 30,513.95 and 12,550.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,111.08 : 30,513.95 = 12,550.78 : x
2. Step 2: Convert to fraction form
   22,111.08/30,513.95 = 12,550.78/x
3. Step 3: Cross multiply
   22,111.08x = 30,513.95 × 12,550.78
4. Step 4: Simplify right side
   22,111.08x = 382,973,873.38
5. Step 5: Solve for x
   x = 382,973,873.38/22,111.08
6. Step 6: Final answer
   x = 17,320.45