Finding the Fourth Proportional to 31,783.98, 47,669.22 and 12,055.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,783.98 : 47,669.22 = 12,055.62 : x
2. Step 2: Convert to fraction form
   31,783.98/47,669.22 = 12,055.62/x
3. Step 3: Cross multiply
   31,783.98x = 47,669.22 × 12,055.62
4. Step 4: Simplify right side
   31,783.98x = 574,682,002.02
5. Step 5: Solve for x
   x = 574,682,002.02/31,783.98
6. Step 6: Final answer
   x = 18,080.87