Finding the Fourth Proportional to 31,758.57, 43,847.51 and 21,683.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,758.57 : 43,847.51 = 21,683.34 : x
2. Step 2: Convert to fraction form
   31,758.57/43,847.51 = 21,683.34/x
3. Step 3: Cross multiply
   31,758.57x = 43,847.51 × 21,683.34
4. Step 4: Simplify right side
   31,758.57x = 950,760,359.07
5. Step 5: Solve for x
   x = 950,760,359.07/31,758.57
6. Step 6: Final answer
   x = 29,937.13