Finding the Fourth Proportional to 31,196.81, 43,038.73 and 22,680.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,196.81 : 43,038.73 = 22,680.27 : x
2. Step 2: Convert to fraction form
   31,196.81/43,038.73 = 22,680.27/x
3. Step 3: Cross multiply
   31,196.81x = 43,038.73 × 22,680.27
4. Step 4: Simplify right side
   31,196.81x = 976,129,688.26
5. Step 5: Solve for x
   x = 976,129,688.26/31,196.81
6. Step 6: Final answer
   x = 31,289.41