Finding the Fourth Proportional to 31,688.72, 43,730.89 and 17,541.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,688.72 : 43,730.89 = 17,541.56 : x
2. Step 2: Convert to fraction form
   31,688.72/43,730.89 = 17,541.56/x
3. Step 3: Cross multiply
   31,688.72x = 43,730.89 × 17,541.56
4. Step 4: Simplify right side
   31,688.72x = 767,108,096.26
5. Step 5: Solve for x
   x = 767,108,096.26/31,688.72
6. Step 6: Final answer
   x = 24,207.61