Finding the Fourth Proportional to 31,659.77, 43,688.69 and 17,316.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,659.77 : 43,688.69 = 17,316.72 : x
2. Step 2: Convert to fraction form
   31,659.77/43,688.69 = 17,316.72/x
3. Step 3: Cross multiply
   31,659.77x = 43,688.69 × 17,316.72
4. Step 4: Simplify right side
   31,659.77x = 756,544,725.31
5. Step 5: Solve for x
   x = 756,544,725.31/31,659.77
6. Step 6: Final answer
   x = 23,896.09