Finding the Fourth Proportional to 21,269.34, 31,901.58 and 5,688.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,269.34 : 31,901.58 = 5,688.18 : x
2. Step 2: Convert to fraction form
   21,269.34/31,901.58 = 5,688.18/x
3. Step 3: Cross multiply
   21,269.34x = 31,901.58 × 5,688.18
4. Step 4: Simplify right side
   21,269.34x = 181,461,929.32
5. Step 5: Solve for x
   x = 181,461,929.32/21,269.34
6. Step 6: Final answer
   x = 8,531.62