Finding the Fourth Proportional to 21,963.50, 32,978.06 and 21,635.45

Step by Step Solution

1. Step 1: Write the proportion equation
   21,963.50 : 32,978.06 = 21,635.45 : x
2. Step 2: Convert to fraction form
   21,963.50/32,978.06 = 21,635.45/x
3. Step 3: Cross multiply
   21,963.50x = 32,978.06 × 21,635.45
4. Step 4: Simplify right side
   21,963.50x = 713,495,168.23
5. Step 5: Solve for x
   x = 713,495,168.23/21,963.50
6. Step 6: Final answer
   x = 32,485.49