Finding the Fourth Proportional to 21,525.02, 32,266.47 and 10,990.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,525.02 : 32,266.47 = 10,990.16 : x
2. Step 2: Convert to fraction form
   21,525.02/32,266.47 = 10,990.16/x
3. Step 3: Cross multiply
   21,525.02x = 32,266.47 × 10,990.16
4. Step 4: Simplify right side
   21,525.02x = 354,613,667.94
5. Step 5: Solve for x
   x = 354,613,667.94/21,525.02
6. Step 6: Final answer
   x = 16,474.49