Finding the Fourth Proportional to 9,199.42, 12,698.88 and 9,064.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,199.42 : 12,698.88 = 9,064.42 : x
2. Step 2: Convert to fraction form
   9,199.42/12,698.88 = 9,064.42/x
3. Step 3: Cross multiply
   9,199.42x = 12,698.88 × 9,064.42
4. Step 4: Simplify right side
   9,199.42x = 115,107,981.85
5. Step 5: Solve for x
   x = 115,107,981.85/9,199.42
6. Step 6: Final answer
   x = 12,512.53