Finding the Fourth Proportional to 12,956.10, 19,433.94 and 4,633.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,956.10 : 19,433.94 = 4,633.86 : x
2. Step 2: Convert to fraction form
   12,956.10/19,433.94 = 4,633.86/x
3. Step 3: Cross multiply
   12,956.10x = 19,433.94 × 4,633.86
4. Step 4: Simplify right side
   12,956.10x = 90,054,157.21
5. Step 5: Solve for x
   x = 90,054,157.21/12,956.10
6. Step 6: Final answer
   x = 6,950.71