Finding the Fourth Proportional to 31,587.82, 47,365.85 and 10,520.41

Step by Step Solution

1. Step 1: Write the proportion equation
   31,587.82 : 47,365.85 = 10,520.41 : x
2. Step 2: Convert to fraction form
   31,587.82/47,365.85 = 10,520.41/x
3. Step 3: Cross multiply
   31,587.82x = 47,365.85 × 10,520.41
4. Step 4: Simplify right side
   31,587.82x = 498,308,162.00
5. Step 5: Solve for x
   x = 498,308,162.00/31,587.82
6. Step 6: Final answer
   x = 15,775.33