Finding the Fourth Proportional to 21,965.72, 32,904.45 and 10,103.00

Step by Step Solution

1. Step 1: Write the proportion equation
   21,965.72 : 32,904.45 = 10,103.00 : x
2. Step 2: Convert to fraction form
   21,965.72/32,904.45 = 10,103.00/x
3. Step 3: Cross multiply
   21,965.72x = 32,904.45 × 10,103.00
4. Step 4: Simplify right side
   21,965.72x = 332,433,493.83
5. Step 5: Solve for x
   x = 332,433,493.83/21,965.72
6. Step 6: Final answer
   x = 15,134.20