Finding the Fourth Proportional to 19,928.56, 27,501.59 and 10,976.09

Step by Step Solution

1. Step 1: Write the proportion equation
   19,928.56 : 27,501.59 = 10,976.09 : x
2. Step 2: Convert to fraction form
   19,928.56/27,501.59 = 10,976.09/x
3. Step 3: Cross multiply
   19,928.56x = 27,501.59 × 10,976.09
4. Step 4: Simplify right side
   19,928.56x = 301,860,023.18
5. Step 5: Solve for x
   x = 301,860,023.18/19,928.56
6. Step 6: Final answer
   x = 15,147.11