Finding the Fourth Proportional to 17,012.56, 23,478.24 and 9,938.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,012.56 : 23,478.24 = 9,938.56 : x
2. Step 2: Convert to fraction form
   17,012.56/23,478.24 = 9,938.56/x
3. Step 3: Cross multiply
   17,012.56x = 23,478.24 × 9,938.56
4. Step 4: Simplify right side
   17,012.56x = 233,339,896.93
5. Step 5: Solve for x
   x = 233,339,896.93/17,012.56
6. Step 6: Final answer
   x = 13,715.74