Finding the Fourth Proportional to 8,124.48, 12,188.55 and 2,578.01

Step by Step Solution

1. Step 1: Write the proportion equation
   8,124.48 : 12,188.55 = 2,578.01 : x
2. Step 2: Convert to fraction form
   8,124.48/12,188.55 = 2,578.01/x
3. Step 3: Cross multiply
   8,124.48x = 12,188.55 × 2,578.01
4. Step 4: Simplify right side
   8,124.48x = 31,422,156.03
5. Step 5: Solve for x
   x = 31,422,156.03/8,124.48
6. Step 6: Final answer
   x = 3,867.59