Finding the Fourth Proportional to 13,826.32, 19,080.27 and 7,538.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,826.32 : 19,080.27 = 7,538.69 : x
2. Step 2: Convert to fraction form
   13,826.32/19,080.27 = 7,538.69/x
3. Step 3: Cross multiply
   13,826.32x = 19,080.27 × 7,538.69
4. Step 4: Simplify right side
   13,826.32x = 143,840,240.65
5. Step 5: Solve for x
   x = 143,840,240.65/13,826.32
6. Step 6: Final answer
   x = 10,403.36