Finding the Fourth Proportional to 9,106.74, 13,656.52 and 4,425.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,106.74 : 13,656.52 = 4,425.36 : x
2. Step 2: Convert to fraction form
   9,106.74/13,656.52 = 4,425.36/x
3. Step 3: Cross multiply
   9,106.74x = 13,656.52 × 4,425.36
4. Step 4: Simplify right side
   9,106.74x = 60,435,057.50
5. Step 5: Solve for x
   x = 60,435,057.50/9,106.74
6. Step 6: Final answer
   x = 6,636.30