Finding the Fourth Proportional to 12,012.06, 16,584.84 and 7,827.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,012.06 : 16,584.84 = 7,827.60 : x
2. Step 2: Convert to fraction form
   12,012.06/16,584.84 = 7,827.60/x
3. Step 3: Cross multiply
   12,012.06x = 16,584.84 × 7,827.60
4. Step 4: Simplify right side
   12,012.06x = 129,819,493.58
5. Step 5: Solve for x
   x = 129,819,493.58/12,012.06
6. Step 6: Final answer
   x = 10,807.43