Finding the Fourth Proportional to 12,719.57, 17,554.02 and 7,054.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,719.57 : 17,554.02 = 7,054.88 : x
2. Step 2: Convert to fraction form
   12,719.57/17,554.02 = 7,054.88/x
3. Step 3: Cross multiply
   12,719.57x = 17,554.02 × 7,054.88
4. Step 4: Simplify right side
   12,719.57x = 123,841,504.62
5. Step 5: Solve for x
   x = 123,841,504.62/12,719.57
6. Step 6: Final answer
   x = 9,736.30