Finding the Fourth Proportional to 31,683.31, 43,706.06 and 19,590.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,683.31 : 43,706.06 = 19,590.57 : x
2. Step 2: Convert to fraction form
   31,683.31/43,706.06 = 19,590.57/x
3. Step 3: Cross multiply
   31,683.31x = 43,706.06 × 19,590.57
4. Step 4: Simplify right side
   31,683.31x = 856,226,529.90
5. Step 5: Solve for x
   x = 856,226,529.90/31,683.31
6. Step 6: Final answer
   x = 27,024.53