Finding the Fourth Proportional to 9,072.72, 12,520.62 and 5,093.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,072.72 : 12,520.62 = 5,093.28 : x
2. Step 2: Convert to fraction form
   9,072.72/12,520.62 = 5,093.28/x
3. Step 3: Cross multiply
   9,072.72x = 12,520.62 × 5,093.28
4. Step 4: Simplify right side
   9,072.72x = 63,771,023.43
5. Step 5: Solve for x
   x = 63,771,023.43/9,072.72
6. Step 6: Final answer
   x = 7,028.88