Finding the Fourth Proportional to 31,153.50, 46,733.04 and 12,429

Step by Step Solution

1. Step 1: Write the proportion equation
   31,153.50 : 46,733.04 = 12,429 : x
2. Step 2: Convert to fraction form
   31,153.50/46,733.04 = 12,429/x
3. Step 3: Cross multiply
   31,153.50x = 46,733.04 × 12,429
4. Step 4: Simplify right side
   31,153.50x = 580,844,954.16
5. Step 5: Solve for x
   x = 580,844,954.16/31,153.50
6. Step 6: Final answer
   x = 18,644.61