Finding the Fourth Proportional to 9,354.06, 12,908.43 and 5,105.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.06 : 12,908.43 = 5,105.34 : x
2. Step 2: Convert to fraction form
   9,354.06/12,908.43 = 5,105.34/x
3. Step 3: Cross multiply
   9,354.06x = 12,908.43 × 5,105.34
4. Step 4: Simplify right side
   9,354.06x = 65,901,924.02
5. Step 5: Solve for x
   x = 65,901,924.02/9,354.06
6. Step 6: Final answer
   x = 7,045.27