Finding the Fourth Proportional to 12,432.70, 17,151.33 and 7,394.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,432.70 : 17,151.33 = 7,394.09 : x
2. Step 2: Convert to fraction form
   12,432.70/17,151.33 = 7,394.09/x
3. Step 3: Cross multiply
   12,432.70x = 17,151.33 × 7,394.09
4. Step 4: Simplify right side
   12,432.70x = 126,818,440.67
5. Step 5: Solve for x
   x = 126,818,440.67/12,432.70
6. Step 6: Final answer
   x = 10,200.40