Finding the Fourth Proportional to 12,056.36, 16,637.24 and 7,020.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,056.36 : 16,637.24 = 7,020.72 : x
2. Step 2: Convert to fraction form
   12,056.36/16,637.24 = 7,020.72/x
3. Step 3: Cross multiply
   12,056.36x = 16,637.24 × 7,020.72
4. Step 4: Simplify right side
   12,056.36x = 116,805,403.61
5. Step 5: Solve for x
   x = 116,805,403.61/12,056.36
6. Step 6: Final answer
   x = 9,688.28