Finding the Fourth Proportional to 12,036.48, 16,594.56 and 8,684.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,036.48 : 16,594.56 = 8,684.16 : x
2. Step 2: Convert to fraction form
   12,036.48/16,594.56 = 8,684.16/x
3. Step 3: Cross multiply
   12,036.48x = 16,594.56 × 8,684.16
4. Step 4: Simplify right side
   12,036.48x = 144,109,814.17
5. Step 5: Solve for x
   x = 144,109,814.17/12,036.48
6. Step 6: Final answer
   x = 11,972.75