Finding the Fourth Proportional to 21,016.73, 31,526.18 and 5,434.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,016.73 : 31,526.18 = 5,434.49 : x
2. Step 2: Convert to fraction form
   21,016.73/31,526.18 = 5,434.49/x
3. Step 3: Cross multiply
   21,016.73x = 31,526.18 × 5,434.49
4. Step 4: Simplify right side
   21,016.73x = 171,328,709.95
5. Step 5: Solve for x
   x = 171,328,709.95/21,016.73
6. Step 6: Final answer
   x = 8,152.02