Finding the Fourth Proportional to 22,256.78, 33,385.08 and 9,109.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,256.78 : 33,385.08 = 9,109.15 : x
2. Step 2: Convert to fraction form
   22,256.78/33,385.08 = 9,109.15/x
3. Step 3: Cross multiply
   22,256.78x = 33,385.08 × 9,109.15
4. Step 4: Simplify right side
   22,256.78x = 304,109,701.48
5. Step 5: Solve for x
   x = 304,109,701.48/22,256.78
6. Step 6: Final answer
   x = 13,663.69