Finding the Fourth Proportional to 17,111.32, 23,613.36 and 9,557.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,111.32 : 23,613.36 = 9,557.78 : x
2. Step 2: Convert to fraction form
   17,111.32/23,613.36 = 9,557.78/x
3. Step 3: Cross multiply
   17,111.32x = 23,613.36 × 9,557.78
4. Step 4: Simplify right side
   17,111.32x = 225,691,299.94
5. Step 5: Solve for x
   x = 225,691,299.94/17,111.32
6. Step 6: Final answer
   x = 13,189.59