Finding the Fourth Proportional to 8,748.27, 12,072.84 and 5,393.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,748.27 : 12,072.84 = 5,393.30 : x
2. Step 2: Convert to fraction form
   8,748.27/12,072.84 = 5,393.30/x
3. Step 3: Cross multiply
   8,748.27x = 12,072.84 × 5,393.30
4. Step 4: Simplify right side
   8,748.27x = 65,112,404.31
5. Step 5: Solve for x
   x = 65,112,404.31/8,748.27
6. Step 6: Final answer
   x = 7,442.89