Finding the Fourth Proportional to 19,105.83, 28,651.47 and 7,416.33

Step by Step Solution

1. Step 1: Write the proportion equation
   19,105.83 : 28,651.47 = 7,416.33 : x
2. Step 2: Convert to fraction form
   19,105.83/28,651.47 = 7,416.33/x
3. Step 3: Cross multiply
   19,105.83x = 28,651.47 × 7,416.33
4. Step 4: Simplify right side
   19,105.83x = 212,488,756.51
5. Step 5: Solve for x
   x = 212,488,756.51/19,105.83
6. Step 6: Final answer
   x = 11,121.67