Finding the Fourth Proportional to 31,725.72, 43,784.12 and 17,579.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,725.72 : 43,784.12 = 17,579.88 : x
2. Step 2: Convert to fraction form
   31,725.72/43,784.12 = 17,579.88/x
3. Step 3: Cross multiply
   31,725.72x = 43,784.12 × 17,579.88
4. Step 4: Simplify right side
   31,725.72x = 769,719,575.51
5. Step 5: Solve for x
   x = 769,719,575.51/31,725.72
6. Step 6: Final answer
   x = 24,261.69