Finding the Fourth Proportional to 31,850.37, 43,941.27 and 20,518.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,850.37 : 43,941.27 = 20,518.98 : x
2. Step 2: Convert to fraction form
   31,850.37/43,941.27 = 20,518.98/x
3. Step 3: Cross multiply
   31,850.37x = 43,941.27 × 20,518.98
4. Step 4: Simplify right side
   31,850.37x = 901,630,040.30
5. Step 5: Solve for x
   x = 901,630,040.30/31,850.37
6. Step 6: Final answer
   x = 28,308.31