Finding the Fourth Proportional to 21,409.61, 32,100.71 and 10,294.16

Step by Step Solution

1. Step 1: Write the proportion equation
   21,409.61 : 32,100.71 = 10,294.16 : x
2. Step 2: Convert to fraction form
   21,409.61/32,100.71 = 10,294.16/x
3. Step 3: Cross multiply
   21,409.61x = 32,100.71 × 10,294.16
4. Step 4: Simplify right side
   21,409.61x = 330,449,632.88
5. Step 5: Solve for x
   x = 330,449,632.88/21,409.61
6. Step 6: Final answer
   x = 15,434.64