Finding the Fourth Proportional to 13,827.29, 19,081.79 and 7,539.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,827.29 : 19,081.79 = 7,539.69 : x
2. Step 2: Convert to fraction form
   13,827.29/19,081.79 = 7,539.69/x
3. Step 3: Cross multiply
   13,827.29x = 19,081.79 × 7,539.69
4. Step 4: Simplify right side
   13,827.29x = 143,870,743.55
5. Step 5: Solve for x
   x = 143,870,743.55/13,827.29
6. Step 6: Final answer
   x = 10,404.84