Finding the Fourth Proportional to 17,370.96, 23,971.56 and 9,412.88

Step by Step Solution

1. Step 1: Write the proportion equation
   17,370.96 : 23,971.56 = 9,412.88 : x
2. Step 2: Convert to fraction form
   17,370.96/23,971.56 = 9,412.88/x
3. Step 3: Cross multiply
   17,370.96x = 23,971.56 × 9,412.88
4. Step 4: Simplify right side
   17,370.96x = 225,641,417.69
5. Step 5: Solve for x
   x = 225,641,417.69/17,370.96
6. Step 6: Final answer
   x = 12,989.58