Finding the Fourth Proportional to 19,580, 27,020.42 and 10,627.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,580 : 27,020.42 = 10,627.50 : x
2. Step 2: Convert to fraction form
   19,580/27,020.42 = 10,627.50/x
3. Step 3: Cross multiply
   19,580x = 27,020.42 × 10,627.50
4. Step 4: Simplify right side
   19,580x = 287,159,378.45
5. Step 5: Solve for x
   x = 287,159,378.45/19,580
6. Step 6: Final answer
   x = 14,665.95