Finding the Fourth Proportional to 31,177.56, 46,788.72 and 12,446.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,177.56 : 46,788.72 = 12,446.76 : x
2. Step 2: Convert to fraction form
   31,177.56/46,788.72 = 12,446.76/x
3. Step 3: Cross multiply
   31,177.56x = 46,788.72 × 12,446.76
4. Step 4: Simplify right side
   31,177.56x = 582,367,968.55
5. Step 5: Solve for x
   x = 582,367,968.55/31,177.56
6. Step 6: Final answer
   x = 18,679.07