Finding the Fourth Proportional to 12,627.62, 17,423.82 and 7,321.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,627.62 : 17,423.82 = 7,321.70 : x
2. Step 2: Convert to fraction form
   12,627.62/17,423.82 = 7,321.70/x
3. Step 3: Cross multiply
   12,627.62x = 17,423.82 × 7,321.70
4. Step 4: Simplify right side
   12,627.62x = 127,571,982.89
5. Step 5: Solve for x
   x = 127,571,982.89/12,627.62
6. Step 6: Final answer
   x = 10,102.61