Finding the Fourth Proportional to 16,967.52, 23,415.20 and 9,515.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,967.52 : 23,415.20 = 9,515.04 : x
2. Step 2: Convert to fraction form
   16,967.52/23,415.20 = 9,515.04/x
3. Step 3: Cross multiply
   16,967.52x = 23,415.20 × 9,515.04
4. Step 4: Simplify right side
   16,967.52x = 222,796,564.61
5. Step 5: Solve for x
   x = 222,796,564.61/16,967.52
6. Step 6: Final answer
   x = 13,130.77