Finding the Fourth Proportional to 9,128.45, 12,597.12 and 5,150.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,128.45 : 12,597.12 = 5,150.84 : x
2. Step 2: Convert to fraction form
   9,128.45/12,597.12 = 5,150.84/x
3. Step 3: Cross multiply
   9,128.45x = 12,597.12 × 5,150.84
4. Step 4: Simplify right side
   9,128.45x = 64,885,749.58
5. Step 5: Solve for x
   x = 64,885,749.58/9,128.45
6. Step 6: Final answer
   x = 7,108.08