Finding the Fourth Proportional to 31,786.85, 47,678.15 and 13,062.03

Step by Step Solution

1. Step 1: Write the proportion equation
   31,786.85 : 47,678.15 = 13,062.03 : x
2. Step 2: Convert to fraction form
   31,786.85/47,678.15 = 13,062.03/x
3. Step 3: Cross multiply
   31,786.85x = 47,678.15 × 13,062.03
4. Step 4: Simplify right side
   31,786.85x = 622,773,458.30
5. Step 5: Solve for x
   x = 622,773,458.30/31,786.85
6. Step 6: Final answer
   x = 19,592.18