Finding the Fourth Proportional to 19,171.69, 28,774.69 and 9,818.10

Step by Step Solution

1. Step 1: Write the proportion equation
   19,171.69 : 28,774.69 = 9,818.10 : x
2. Step 2: Convert to fraction form
   19,171.69/28,774.69 = 9,818.10/x
3. Step 3: Cross multiply
   19,171.69x = 28,774.69 × 9,818.10
4. Step 4: Simplify right side
   19,171.69x = 282,512,759.34
5. Step 5: Solve for x
   x = 282,512,759.34/19,171.69
6. Step 6: Final answer
   x = 14,735.94