Finding the Fourth Proportional to 9,288.53, 12,818.26 and 5,039.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.53 : 12,818.26 = 5,039.59 : x
2. Step 2: Convert to fraction form
   9,288.53/12,818.26 = 5,039.59/x
3. Step 3: Cross multiply
   9,288.53x = 12,818.26 × 5,039.59
4. Step 4: Simplify right side
   9,288.53x = 64,598,755.47
5. Step 5: Solve for x
   x = 64,598,755.47/9,288.53
6. Step 6: Final answer
   x = 6,954.68