Finding the Fourth Proportional to 13,826.96, 19,081.16 and 7,539.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,826.96 : 19,081.16 = 7,539.34 : x
2. Step 2: Convert to fraction form
   13,826.96/19,081.16 = 7,539.34/x
3. Step 3: Cross multiply
   13,826.96x = 19,081.16 × 7,539.34
4. Step 4: Simplify right side
   13,826.96x = 143,859,352.83
5. Step 5: Solve for x
   x = 143,859,352.83/13,826.96
6. Step 6: Final answer
   x = 10,404.26