Finding the Fourth Proportional to 9,967.88, 13,656.06 and 9,594.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,967.88 : 13,656.06 = 9,594.20 : x
2. Step 2: Convert to fraction form
   9,967.88/13,656.06 = 9,594.20/x
3. Step 3: Cross multiply
   9,967.88x = 13,656.06 × 9,594.20
4. Step 4: Simplify right side
   9,967.88x = 131,018,970.85
5. Step 5: Solve for x
   x = 131,018,970.85/9,967.88
6. Step 6: Final answer
   x = 13,144.12