Finding the Fourth Proportional to 21,903, 32,847.54 and 7,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,903 : 32,847.54 = 7,108.50 : x
2. Step 2: Convert to fraction form
   21,903/32,847.54 = 7,108.50/x
3. Step 3: Cross multiply
   21,903x = 32,847.54 × 7,108.50
4. Step 4: Simplify right side
   21,903x = 233,496,738.09
5. Step 5: Solve for x
   x = 233,496,738.09/21,903
6. Step 6: Final answer
   x = 10,660.49