Finding the Fourth Proportional to 12,647.50, 17,453.56 and 7,058.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,647.50 : 17,453.56 = 7,058.50 : x
2. Step 2: Convert to fraction form
   12,647.50/17,453.56 = 7,058.50/x
3. Step 3: Cross multiply
   12,647.50x = 17,453.56 × 7,058.50
4. Step 4: Simplify right side
   12,647.50x = 123,195,953.26
5. Step 5: Solve for x
   x = 123,195,953.26/12,647.50
6. Step 6: Final answer
   x = 9,740.74