Finding the Fourth Proportional to 12,828.52, 19,236.38 and 5,039.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,828.52 : 19,236.38 = 5,039.72 : x
2. Step 2: Convert to fraction form
   12,828.52/19,236.38 = 5,039.72/x
3. Step 3: Cross multiply
   12,828.52x = 19,236.38 × 5,039.72
4. Step 4: Simplify right side
   12,828.52x = 96,945,969.01
5. Step 5: Solve for x
   x = 96,945,969.01/12,828.52
6. Step 6: Final answer
   x = 7,557.07