Finding the Fourth Proportional to 21,364.02, 32,028.48 and 13,875.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,364.02 : 32,028.48 = 13,875.30 : x
2. Step 2: Convert to fraction form
   21,364.02/32,028.48 = 13,875.30/x
3. Step 3: Cross multiply
   21,364.02x = 32,028.48 × 13,875.30
4. Step 4: Simplify right side
   21,364.02x = 444,404,768.54
5. Step 5: Solve for x
   x = 444,404,768.54/21,364.02
6. Step 6: Final answer
   x = 20,801.55