Finding the Fourth Proportional to 12,967.21, 17,894.98 and 7,662.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,967.21 : 17,894.98 = 7,662.01 : x
2. Step 2: Convert to fraction form
   12,967.21/17,894.98 = 7,662.01/x
3. Step 3: Cross multiply
   12,967.21x = 17,894.98 × 7,662.01
4. Step 4: Simplify right side
   12,967.21x = 137,111,515.71
5. Step 5: Solve for x
   x = 137,111,515.71/12,967.21
6. Step 6: Final answer
   x = 10,573.71