Finding the Fourth Proportional to 8,012.87, 12,025.51 and 5,238.79

Step by Step Solution

1. Step 1: Write the proportion equation
   8,012.87 : 12,025.51 = 5,238.79 : x
2. Step 2: Convert to fraction form
   8,012.87/12,025.51 = 5,238.79/x
3. Step 3: Cross multiply
   8,012.87x = 12,025.51 × 5,238.79
4. Step 4: Simplify right side
   8,012.87x = 62,999,095.34
5. Step 5: Solve for x
   x = 62,999,095.34/8,012.87
6. Step 6: Final answer
   x = 7,862.24