Finding the Fourth Proportional to 19,196.64, 28,781.33 and 7,340.42

Step by Step Solution

1. Step 1: Write the proportion equation
   19,196.64 : 28,781.33 = 7,340.42 : x
2. Step 2: Convert to fraction form
   19,196.64/28,781.33 = 7,340.42/x
3. Step 3: Cross multiply
   19,196.64x = 28,781.33 × 7,340.42
4. Step 4: Simplify right side
   19,196.64x = 211,267,050.36
5. Step 5: Solve for x
   x = 211,267,050.36/19,196.64
6. Step 6: Final answer
   x = 11,005.42