Finding the Fourth Proportional to 12,701.62, 17,525.97 and 7,111.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,701.62 : 17,525.97 = 7,111.54 : x
2. Step 2: Convert to fraction form
   12,701.62/17,525.97 = 7,111.54/x
3. Step 3: Cross multiply
   12,701.62x = 17,525.97 × 7,111.54
4. Step 4: Simplify right side
   12,701.62x = 124,636,636.69
5. Step 5: Solve for x
   x = 124,636,636.69/12,701.62
6. Step 6: Final answer
   x = 9,812.66