Finding the Fourth Proportional to 31,317, 46,977.72 and 12,597.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,317 : 46,977.72 = 12,597.14 : x
2. Step 2: Convert to fraction form
   31,317/46,977.72 = 12,597.14/x
3. Step 3: Cross multiply
   31,317x = 46,977.72 × 12,597.14
4. Step 4: Simplify right side
   31,317x = 591,784,915.72
5. Step 5: Solve for x
   x = 591,784,915.72/31,317
6. Step 6: Final answer
   x = 18,896.60