Finding the Fourth Proportional to 13,072.77, 19,604.41 and 7,154.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,072.77 : 19,604.41 = 7,154.03 : x
2. Step 2: Convert to fraction form
   13,072.77/19,604.41 = 7,154.03/x
3. Step 3: Cross multiply
   13,072.77x = 19,604.41 × 7,154.03
4. Step 4: Simplify right side
   13,072.77x = 140,250,537.27
5. Step 5: Solve for x
   x = 140,250,537.27/13,072.77
6. Step 6: Final answer
   x = 10,728.45