Finding the Fourth Proportional to 31,577.54, 43,592.76 and 19,644.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,577.54 : 43,592.76 = 19,644.72 : x
2. Step 2: Convert to fraction form
   31,577.54/43,592.76 = 19,644.72/x
3. Step 3: Cross multiply
   31,577.54x = 43,592.76 × 19,644.72
4. Step 4: Simplify right side
   31,577.54x = 856,367,564.23
5. Step 5: Solve for x
   x = 856,367,564.23/31,577.54
6. Step 6: Final answer
   x = 27,119.51