Finding the Fourth Proportional to 12,958.12, 17,880.42 and 7,293.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,958.12 : 17,880.42 = 7,293.16 : x
2. Step 2: Convert to fraction form
   12,958.12/17,880.42 = 7,293.16/x
3. Step 3: Cross multiply
   12,958.12x = 17,880.42 × 7,293.16
4. Step 4: Simplify right side
   12,958.12x = 130,404,763.93
5. Step 5: Solve for x
   x = 130,404,763.93/12,958.12
6. Step 6: Final answer
   x = 10,063.56