Finding the Fourth Proportional to 9,354.18, 12,908.42 and 5,162.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.18 : 12,908.42 = 5,162.34 : x
2. Step 2: Convert to fraction form
   9,354.18/12,908.42 = 5,162.34/x
3. Step 3: Cross multiply
   9,354.18x = 12,908.42 × 5,162.34
4. Step 4: Simplify right side
   9,354.18x = 66,637,652.90
5. Step 5: Solve for x
   x = 66,637,652.90/9,354.18
6. Step 6: Final answer
   x = 7,123.84