Finding the Fourth Proportional to 13,826.52, 19,080.72 and 7,538.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,826.52 : 19,080.72 = 7,538.94 : x
2. Step 2: Convert to fraction form
   13,826.52/19,080.72 = 7,538.94/x
3. Step 3: Cross multiply
   13,826.52x = 19,080.72 × 7,538.94
4. Step 4: Simplify right side
   13,826.52x = 143,848,403.24
5. Step 5: Solve for x
   x = 143,848,403.24/13,826.52
6. Step 6: Final answer
   x = 10,403.80