Finding the Fourth Proportional to 9,354.02, 12,908.62 and 5,105.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.02 : 12,908.62 = 5,105.11 : x
2. Step 2: Convert to fraction form
   9,354.02/12,908.62 = 5,105.11/x
3. Step 3: Cross multiply
   9,354.02x = 12,908.62 × 5,105.11
4. Step 4: Simplify right side
   9,354.02x = 65,899,925.05
5. Step 5: Solve for x
   x = 65,899,925.05/9,354.02
6. Step 6: Final answer
   x = 7,045.09