Finding the Fourth Proportional to 21,480.56, 32,182.73 and 8,973.07

Step by Step Solution

1. Step 1: Write the proportion equation
   21,480.56 : 32,182.73 = 8,973.07 : x
2. Step 2: Convert to fraction form
   21,480.56/32,182.73 = 8,973.07/x
3. Step 3: Cross multiply
   21,480.56x = 32,182.73 × 8,973.07
4. Step 4: Simplify right side
   21,480.56x = 288,777,683.30
5. Step 5: Solve for x
   x = 288,777,683.30/21,480.56
6. Step 6: Final answer
   x = 13,443.68