Finding the Fourth Proportional to 31,014, 42,799.32 and 16,867.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,014 : 42,799.32 = 16,867.15 : x
2. Step 2: Convert to fraction form
   31,014/42,799.32 = 16,867.15/x
3. Step 3: Cross multiply
   31,014x = 42,799.32 × 16,867.15
4. Step 4: Simplify right side
   31,014x = 721,902,443.34
5. Step 5: Solve for x
   x = 721,902,443.34/31,014
6. Step 6: Final answer
   x = 23,276.66