Finding the Fourth Proportional to 12,116.12, 18,141.06 and 10,016.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,116.12 : 18,141.06 = 10,016.60 : x
2. Step 2: Convert to fraction form
   12,116.12/18,141.06 = 10,016.60/x
3. Step 3: Cross multiply
   12,116.12x = 18,141.06 × 10,016.60
4. Step 4: Simplify right side
   12,116.12x = 181,711,741.60
5. Step 5: Solve for x
   x = 181,711,741.60/12,116.12
6. Step 6: Final answer
   x = 14,997.52