Finding the Fourth Proportional to 9,084.18, 12,536.22 and 5,105.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,084.18 : 12,536.22 = 5,105.18 : x
2. Step 2: Convert to fraction form
   9,084.18/12,536.22 = 5,105.18/x
3. Step 3: Cross multiply
   9,084.18x = 12,536.22 × 5,105.18
4. Step 4: Simplify right side
   9,084.18x = 63,999,659.62
5. Step 5: Solve for x
   x = 63,999,659.62/9,084.18
6. Step 6: Final answer
   x = 7,045.18