Finding the Fourth Proportional to 21,020.18, 29,004.69 and 12,068.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,020.18 : 29,004.69 = 12,068.06 : x
2. Step 2: Convert to fraction form
   21,020.18/29,004.69 = 12,068.06/x
3. Step 3: Cross multiply
   21,020.18x = 29,004.69 × 12,068.06
4. Step 4: Simplify right side
   21,020.18x = 350,030,339.20
5. Step 5: Solve for x
   x = 350,030,339.20/21,020.18
6. Step 6: Final answer
   x = 16,652.11