Finding the Fourth Proportional to 17,153.28, 23,670.72 and 9,699.84

Step by Step Solution

1. Step 1: Write the proportion equation
   17,153.28 : 23,670.72 = 9,699.84 : x
2. Step 2: Convert to fraction form
   17,153.28/23,670.72 = 9,699.84/x
3. Step 3: Cross multiply
   17,153.28x = 23,670.72 × 9,699.84
4. Step 4: Simplify right side
   17,153.28x = 229,602,196.68
5. Step 5: Solve for x
   x = 229,602,196.68/17,153.28
6. Step 6: Final answer
   x = 13,385.32