Finding the Fourth Proportional to 31,978.18, 48,001.83 and 13,523.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,978.18 : 48,001.83 = 13,523.14 : x
2. Step 2: Convert to fraction form
   31,978.18/48,001.83 = 13,523.14/x
3. Step 3: Cross multiply
   31,978.18x = 48,001.83 × 13,523.14
4. Step 4: Simplify right side
   31,978.18x = 649,135,467.35
5. Step 5: Solve for x
   x = 649,135,467.35/31,978.18
6. Step 6: Final answer
   x = 20,299.32