Finding the Fourth Proportional to 21,915.32, 32,825.79 and 14,856.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21,915.32 : 32,825.79 = 14,856.59 : x
2. Step 2: Convert to fraction form
   21,915.32/32,825.79 = 14,856.59/x
3. Step 3: Cross multiply
   21,915.32x = 32,825.79 × 14,856.59
4. Step 4: Simplify right side
   21,915.32x = 487,679,385.52
5. Step 5: Solve for x
   x = 487,679,385.52/21,915.32
6. Step 6: Final answer
   x = 22,252.90