Finding the Fourth Proportional to 13,821.57, 19,073.88 and 7,534.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,821.57 : 19,073.88 = 7,534.08 : x
2. Step 2: Convert to fraction form
   13,821.57/19,073.88 = 7,534.08/x
3. Step 3: Cross multiply
   13,821.57x = 19,073.88 × 7,534.08
4. Step 4: Simplify right side
   13,821.57x = 143,704,137.83
5. Step 5: Solve for x
   x = 143,704,137.83/13,821.57
6. Step 6: Final answer
   x = 10,397.09