Finding the Fourth Proportional to 21,611.34, 32,389.32 and 16,670.61

Step by Step Solution

1. Step 1: Write the proportion equation
   21,611.34 : 32,389.32 = 16,670.61 : x
2. Step 2: Convert to fraction form
   21,611.34/32,389.32 = 16,670.61/x
3. Step 3: Cross multiply
   21,611.34x = 32,389.32 × 16,670.61
4. Step 4: Simplify right side
   21,611.34x = 539,949,721.89
5. Step 5: Solve for x
   x = 539,949,721.89/21,611.34
6. Step 6: Final answer
   x = 24,984.56