Finding the Fourth Proportional to 31,656.57, 43,683.34 and 17,505.87

Step by Step Solution

1. Step 1: Write the proportion equation
   31,656.57 : 43,683.34 = 17,505.87 : x
2. Step 2: Convert to fraction form
   31,656.57/43,683.34 = 17,505.87/x
3. Step 3: Cross multiply
   31,656.57x = 43,683.34 × 17,505.87
4. Step 4: Simplify right side
   31,656.57x = 764,714,871.21
5. Step 5: Solve for x
   x = 764,714,871.21/31,656.57
6. Step 6: Final answer
   x = 24,156.59