Finding the Fourth Proportional to 8,572.75, 12,848.51 and 5,059.19

Step by Step Solution

1. Step 1: Write the proportion equation
   8,572.75 : 12,848.51 = 5,059.19 : x
2. Step 2: Convert to fraction form
   8,572.75/12,848.51 = 5,059.19/x
3. Step 3: Cross multiply
   8,572.75x = 12,848.51 × 5,059.19
4. Step 4: Simplify right side
   8,572.75x = 65,003,053.31
5. Step 5: Solve for x
   x = 65,003,053.31/8,572.75
6. Step 6: Final answer
   x = 7,582.53