Finding the Fourth Proportional to 19,053.83, 28,590.50 and 9,069.87

Step by Step Solution

1. Step 1: Write the proportion equation
   19,053.83 : 28,590.50 = 9,069.87 : x
2. Step 2: Convert to fraction form
   19,053.83/28,590.50 = 9,069.87/x
3. Step 3: Cross multiply
   19,053.83x = 28,590.50 × 9,069.87
4. Step 4: Simplify right side
   19,053.83x = 259,312,072.89
5. Step 5: Solve for x
   x = 259,312,072.89/19,053.83
6. Step 6: Final answer
   x = 13,609.45