Finding the Fourth Proportional to 8,764.56, 12,096.90 and 4,987.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,764.56 : 12,096.90 = 4,987.98 : x
2. Step 2: Convert to fraction form
   8,764.56/12,096.90 = 4,987.98/x
3. Step 3: Cross multiply
   8,764.56x = 12,096.90 × 4,987.98
4. Step 4: Simplify right side
   8,764.56x = 60,339,095.26
5. Step 5: Solve for x
   x = 60,339,095.26/8,764.56
6. Step 6: Final answer
   x = 6,884.44