Finding the Fourth Proportional to 17,112.90, 23,614.29 and 9,558.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,112.90 : 23,614.29 = 9,558.21 : x
2. Step 2: Convert to fraction form
   17,112.90/23,614.29 = 9,558.21/x
3. Step 3: Cross multiply
   17,112.90x = 23,614.29 × 9,558.21
4. Step 4: Simplify right side
   17,112.90x = 225,710,342.82
5. Step 5: Solve for x
   x = 225,710,342.82/17,112.90
6. Step 6: Final answer
   x = 13,189.49