Finding the Fourth Proportional to 13,023.72, 17,972.46 and 7,055.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,023.72 : 17,972.46 = 7,055.16 : x
2. Step 2: Convert to fraction form
   13,023.72/17,972.46 = 7,055.16/x
3. Step 3: Cross multiply
   13,023.72x = 17,972.46 × 7,055.16
4. Step 4: Simplify right side
   13,023.72x = 126,798,580.89
5. Step 5: Solve for x
   x = 126,798,580.89/13,023.72
6. Step 6: Final answer
   x = 9,735.97