Finding the Fourth Proportional to 12,156.02, 18,272.09 and 8,022.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156.02 : 18,272.09 = 8,022.59 : x
2. Step 2: Convert to fraction form
   12,156.02/18,272.09 = 8,022.59/x
3. Step 3: Cross multiply
   12,156.02x = 18,272.09 × 8,022.59
4. Step 4: Simplify right side
   12,156.02x = 146,589,486.51
5. Step 5: Solve for x
   x = 146,589,486.51/12,156.02
6. Step 6: Final answer
   x = 12,059.00