Finding the Fourth Proportional to 10,613.70, 14,638.32 and 7,425.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,613.70 : 14,638.32 = 7,425.81 : x
2. Step 2: Convert to fraction form
   10,613.70/14,638.32 = 7,425.81/x
3. Step 3: Cross multiply
   10,613.70x = 14,638.32 × 7,425.81
4. Step 4: Simplify right side
   10,613.70x = 108,701,383.04
5. Step 5: Solve for x
   x = 108,701,383.04/10,613.70
6. Step 6: Final answer
   x = 10,241.61