Finding the Fourth Proportional to 21,390.21, 32,058.59 and 10,293.93

Step by Step Solution

1. Step 1: Write the proportion equation
   21,390.21 : 32,058.59 = 10,293.93 : x
2. Step 2: Convert to fraction form
   21,390.21/32,058.59 = 10,293.93/x
3. Step 3: Cross multiply
   21,390.21x = 32,058.59 × 10,293.93
4. Step 4: Simplify right side
   21,390.21x = 330,008,829.89
5. Step 5: Solve for x
   x = 330,008,829.89/21,390.21
6. Step 6: Final answer
   x = 15,428.03