Finding the Fourth Proportional to 21,487.72, 32,212.14 and 7,633.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,487.72 : 32,212.14 = 7,633.48 : x
2. Step 2: Convert to fraction form
   21,487.72/32,212.14 = 7,633.48/x
3. Step 3: Cross multiply
   21,487.72x = 32,212.14 × 7,633.48
4. Step 4: Simplify right side
   21,487.72x = 245,890,726.45
5. Step 5: Solve for x
   x = 245,890,726.45/21,487.72
6. Step 6: Final answer
   x = 11,443.31