Finding the Fourth Proportional to 31,267.43, 46,909.89 and 12,560.61

Step by Step Solution

1. Step 1: Write the proportion equation
   31,267.43 : 46,909.89 = 12,560.61 : x
2. Step 2: Convert to fraction form
   31,267.43/46,909.89 = 12,560.61/x
3. Step 3: Cross multiply
   31,267.43x = 46,909.89 × 12,560.61
4. Step 4: Simplify right side
   31,267.43x = 589,217,009.34
5. Step 5: Solve for x
   x = 589,217,009.34/31,267.43
6. Step 6: Final answer
   x = 18,844.43