Finding the Fourth Proportional to 22,777.77, 31,433.37 and 12,705.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,777.77 : 31,433.37 = 12,705.96 : x
2. Step 2: Convert to fraction form
   22,777.77/31,433.37 = 12,705.96/x
3. Step 3: Cross multiply
   22,777.77x = 31,433.37 × 12,705.96
4. Step 4: Simplify right side
   22,777.77x = 399,391,141.89
5. Step 5: Solve for x
   x = 399,391,141.89/22,777.77
6. Step 6: Final answer
   x = 17,534.25