Finding the Fourth Proportional to 8,752.89, 12,081.29 and 4,978.26

Step by Step Solution

1. Step 1: Write the proportion equation
   8,752.89 : 12,081.29 = 4,978.26 : x
2. Step 2: Convert to fraction form
   8,752.89/12,081.29 = 4,978.26/x
3. Step 3: Cross multiply
   8,752.89x = 12,081.29 × 4,978.26
4. Step 4: Simplify right side
   8,752.89x = 60,143,777.86
5. Step 5: Solve for x
   x = 60,143,777.86/8,752.89
6. Step 6: Final answer
   x = 6,871.31