Finding the Fourth Proportional to 12,016.13, 18,011.43 and 7,088.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,016.13 : 18,011.43 = 7,088.09 : x
2. Step 2: Convert to fraction form
   12,016.13/18,011.43 = 7,088.09/x
3. Step 3: Cross multiply
   12,016.13x = 18,011.43 × 7,088.09
4. Step 4: Simplify right side
   12,016.13x = 127,666,636.87
5. Step 5: Solve for x
   x = 127,666,636.87/12,016.13
6. Step 6: Final answer
   x = 10,624.61