Finding the Fourth Proportional to 12,425.73, 17,142.91 and 7,390.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,425.73 : 17,142.91 = 7,390.16 : x
2. Step 2: Convert to fraction form
   12,425.73/17,142.91 = 7,390.16/x
3. Step 3: Cross multiply
   12,425.73x = 17,142.91 × 7,390.16
4. Step 4: Simplify right side
   12,425.73x = 126,688,847.77
5. Step 5: Solve for x
   x = 126,688,847.77/12,425.73
6. Step 6: Final answer
   x = 10,195.69