Finding the Fourth Proportional to 12,434.56, 18,656.28 and 5,861.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,434.56 : 18,656.28 = 5,861.68 : x
2. Step 2: Convert to fraction form
   12,434.56/18,656.28 = 5,861.68/x
3. Step 3: Cross multiply
   12,434.56x = 18,656.28 × 5,861.68
4. Step 4: Simplify right side
   12,434.56x = 109,357,143.35
5. Step 5: Solve for x
   x = 109,357,143.35/12,434.56
6. Step 6: Final answer
   x = 8,794.61