Finding the Fourth Proportional to 17,334.72, 23,915.97 and 9,780.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,334.72 : 23,915.97 = 9,780.12 : x
2. Step 2: Convert to fraction form
   17,334.72/23,915.97 = 9,780.12/x
3. Step 3: Cross multiply
   17,334.72x = 23,915.97 × 9,780.12
4. Step 4: Simplify right side
   17,334.72x = 233,901,056.52
5. Step 5: Solve for x
   x = 233,901,056.52/17,334.72
6. Step 6: Final answer
   x = 13,493.21