Finding the Fourth Proportional to 17,007.96, 23,470.38 and 9,939

Step by Step Solution

1. Step 1: Write the proportion equation
   17,007.96 : 23,470.38 = 9,939 : x
2. Step 2: Convert to fraction form
   17,007.96/23,470.38 = 9,939/x
3. Step 3: Cross multiply
   17,007.96x = 23,470.38 × 9,939
4. Step 4: Simplify right side
   17,007.96x = 233,272,106.82
5. Step 5: Solve for x
   x = 233,272,106.82/17,007.96
6. Step 6: Final answer
   x = 13,715.47