Finding the Fourth Proportional to 21,602.55, 29,810.48 and 12,043.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,602.55 : 29,810.48 = 12,043.49 : x
2. Step 2: Convert to fraction form
   21,602.55/29,810.48 = 12,043.49/x
3. Step 3: Cross multiply
   21,602.55x = 29,810.48 × 12,043.49
4. Step 4: Simplify right side
   21,602.55x = 359,022,076.25
5. Step 5: Solve for x
   x = 359,022,076.25/21,602.55
6. Step 6: Final answer
   x = 16,619.43