Finding the Fourth Proportional to 12,445.33, 17,175.78 and 9,296.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,445.33 : 17,175.78 = 9,296.05 : x
2. Step 2: Convert to fraction form
   12,445.33/17,175.78 = 9,296.05/x
3. Step 3: Cross multiply
   12,445.33x = 17,175.78 × 9,296.05
4. Step 4: Simplify right side
   12,445.33x = 159,666,909.67
5. Step 5: Solve for x
   x = 159,666,909.67/12,445.33
6. Step 6: Final answer
   x = 12,829.46