Finding the Fourth Proportional to 21,978.51, 32,973.17 and 6,396.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,978.51 : 32,973.17 = 6,396.27 : x
2. Step 2: Convert to fraction form
   21,978.51/32,973.17 = 6,396.27/x
3. Step 3: Cross multiply
   21,978.51x = 32,973.17 × 6,396.27
4. Step 4: Simplify right side
   21,978.51x = 210,905,266.09
5. Step 5: Solve for x
   x = 210,905,266.09/21,978.51
6. Step 6: Final answer
   x = 9,595.98