Finding the Fourth Proportional to 31,976.18, 47,998.83 and 13,521.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,976.18 : 47,998.83 = 13,521.14 : x
2. Step 2: Convert to fraction form
   31,976.18/47,998.83 = 13,521.14/x
3. Step 3: Cross multiply
   31,976.18x = 47,998.83 × 13,521.14
4. Step 4: Simplify right side
   31,976.18x = 648,998,900.27
5. Step 5: Solve for x
   x = 648,998,900.27/31,976.18
6. Step 6: Final answer
   x = 20,296.32