Finding the Fourth Proportional to 21,329.58, 32,005.17 and 14,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,329.58 : 32,005.17 = 14,389.50 : x
2. Step 2: Convert to fraction form
   21,329.58/32,005.17 = 14,389.50/x
3. Step 3: Cross multiply
   21,329.58x = 32,005.17 × 14,389.50
4. Step 4: Simplify right side
   21,329.58x = 460,538,393.72
5. Step 5: Solve for x
   x = 460,538,393.72/21,329.58
6. Step 6: Final answer
   x = 21,591.54