Finding the Fourth Proportional to 8,956.58, 12,359.59 and 4,977.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,956.58 : 12,359.59 = 4,977.86 : x
2. Step 2: Convert to fraction form
   8,956.58/12,359.59 = 4,977.86/x
3. Step 3: Cross multiply
   8,956.58x = 12,359.59 × 4,977.86
4. Step 4: Simplify right side
   8,956.58x = 61,524,234.43
5. Step 5: Solve for x
   x = 61,524,234.43/8,956.58
6. Step 6: Final answer
   x = 6,869.17