Finding the Fourth Proportional to 31,196.31, 43,038.04 and 22,679.77

Step by Step Solution

1. Step 1: Write the proportion equation
   31,196.31 : 43,038.04 = 22,679.77 : x
2. Step 2: Convert to fraction form
   31,196.31/43,038.04 = 22,679.77/x
3. Step 3: Cross multiply
   31,196.31x = 43,038.04 × 22,679.77
4. Step 4: Simplify right side
   31,196.31x = 976,092,519.86
5. Step 5: Solve for x
   x = 976,092,519.86/31,196.31
6. Step 6: Final answer
   x = 31,288.72