Finding the Fourth Proportional to 12,055.92, 16,638.74 and 7,020.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,055.92 : 16,638.74 = 7,020.22 : x
2. Step 2: Convert to fraction form
   12,055.92/16,638.74 = 7,020.22/x
3. Step 3: Cross multiply
   12,055.92x = 16,638.74 × 7,020.22
4. Step 4: Simplify right side
   12,055.92x = 116,807,615.32
5. Step 5: Solve for x
   x = 116,807,615.32/12,055.92
6. Step 6: Final answer
   x = 9,688.82