Finding the Fourth Proportional to 31,549.63, 43,449.90 and 30,860.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,549.63 : 43,449.90 = 30,860.73 : x
2. Step 2: Convert to fraction form
   31,549.63/43,449.90 = 30,860.73/x
3. Step 3: Cross multiply
   31,549.63x = 43,449.90 × 30,860.73
4. Step 4: Simplify right side
   31,549.63x = 1,340,895,632.43
5. Step 5: Solve for x
   x = 1,340,895,632.43/31,549.63
6. Step 6: Final answer
   x = 42,501.15