Finding the Fourth Proportional to 21,354.34, 32,038.35 and 9,664.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,354.34 : 32,038.35 = 9,664.42 : x
2. Step 2: Convert to fraction form
   21,354.34/32,038.35 = 9,664.42/x
3. Step 3: Cross multiply
   21,354.34x = 32,038.35 × 9,664.42
4. Step 4: Simplify right side
   21,354.34x = 309,632,070.51
5. Step 5: Solve for x
   x = 309,632,070.51/21,354.34
6. Step 6: Final answer
   x = 14,499.73