Finding the Fourth Proportional to 17,360.72, 23,957.84 and 9,402.88

Step by Step Solution

1. Step 1: Write the proportion equation
   17,360.72 : 23,957.84 = 9,402.88 : x
2. Step 2: Convert to fraction form
   17,360.72/23,957.84 = 9,402.88/x
3. Step 3: Cross multiply
   17,360.72x = 23,957.84 × 9,402.88
4. Step 4: Simplify right side
   17,360.72x = 225,272,694.58
5. Step 5: Solve for x
   x = 225,272,694.58/17,360.72
6. Step 6: Final answer
   x = 12,976.00