Finding the Fourth Proportional to 11,856.83, 17,779.37 and 3,956.63

Step by Step Solution

1. Step 1: Write the proportion equation
   11,856.83 : 17,779.37 = 3,956.63 : x
2. Step 2: Convert to fraction form
   11,856.83/17,779.37 = 3,956.63/x
3. Step 3: Cross multiply
   11,856.83x = 17,779.37 × 3,956.63
4. Step 4: Simplify right side
   11,856.83x = 70,346,309.72
5. Step 5: Solve for x
   x = 70,346,309.72/11,856.83
6. Step 6: Final answer
   x = 5,932.98