Finding the Fourth Proportional to 21,654.64, 32,473.71 and 10,406.88

Step by Step Solution

1. Step 1: Write the proportion equation
   21,654.64 : 32,473.71 = 10,406.88 : x
2. Step 2: Convert to fraction form
   21,654.64/32,473.71 = 10,406.88/x
3. Step 3: Cross multiply
   21,654.64x = 32,473.71 × 10,406.88
4. Step 4: Simplify right side
   21,654.64x = 337,950,003.12
5. Step 5: Solve for x
   x = 337,950,003.12/21,654.64
6. Step 6: Final answer
   x = 15,606.35