Finding the Fourth Proportional to 9,084.40, 12,536.07 and 5,105.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,084.40 : 12,536.07 = 5,105.43 : x
2. Step 2: Convert to fraction form
   9,084.40/12,536.07 = 5,105.43/x
3. Step 3: Cross multiply
   9,084.40x = 12,536.07 × 5,105.43
4. Step 4: Simplify right side
   9,084.40x = 64,002,008.71
5. Step 5: Solve for x
   x = 64,002,008.71/9,084.40
6. Step 6: Final answer
   x = 7,045.26