Finding the Fourth Proportional to 31,978.50, 44,129.40 and 18,548.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,978.50 : 44,129.40 = 18,548.88 : x
2. Step 2: Convert to fraction form
   31,978.50/44,129.40 = 18,548.88/x
3. Step 3: Cross multiply
   31,978.50x = 44,129.40 × 18,548.88
4. Step 4: Simplify right side
   31,978.50x = 818,550,945.07
5. Step 5: Solve for x
   x = 818,550,945.07/31,978.50
6. Step 6: Final answer
   x = 25,596.91