Finding the Fourth Proportional to 21,389.02, 32,054.37 and 13,071.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,389.02 : 32,054.37 = 13,071.94 : x
2. Step 2: Convert to fraction form
   21,389.02/32,054.37 = 13,071.94/x
3. Step 3: Cross multiply
   21,389.02x = 32,054.37 × 13,071.94
4. Step 4: Simplify right side
   21,389.02x = 419,012,801.38
5. Step 5: Solve for x
   x = 419,012,801.38/21,389.02
6. Step 6: Final answer
   x = 19,590.09