Finding the Fourth Proportional to 19,196.88, 28,789.71 and 6,714.60

Step by Step Solution

1. Step 1: Write the proportion equation
   19,196.88 : 28,789.71 = 6,714.60 : x
2. Step 2: Convert to fraction form
   19,196.88/28,789.71 = 6,714.60/x
3. Step 3: Cross multiply
   19,196.88x = 28,789.71 × 6,714.60
4. Step 4: Simplify right side
   19,196.88x = 193,311,386.77
5. Step 5: Solve for x
   x = 193,311,386.77/19,196.88
6. Step 6: Final answer
   x = 10,069.94