Finding the Fourth Proportional to 17,360.67, 23,957.72 and 9,402.90

Step by Step Solution

1. Step 1: Write the proportion equation
   17,360.67 : 23,957.72 = 9,402.90 : x
2. Step 2: Convert to fraction form
   17,360.67/23,957.72 = 9,402.90/x
3. Step 3: Cross multiply
   17,360.67x = 23,957.72 × 9,402.90
4. Step 4: Simplify right side
   17,360.67x = 225,271,878.58
5. Step 5: Solve for x
   x = 225,271,878.58/17,360.67
6. Step 6: Final answer
   x = 12,975.99