Finding the Fourth Proportional to 21,601.57, 29,798.79 and 14,875.54

Step by Step Solution

1. Step 1: Write the proportion equation
   21,601.57 : 29,798.79 = 14,875.54 : x
2. Step 2: Convert to fraction form
   21,601.57/29,798.79 = 14,875.54/x
3. Step 3: Cross multiply
   21,601.57x = 29,798.79 × 14,875.54
4. Step 4: Simplify right side
   21,601.57x = 443,273,092.60
5. Step 5: Solve for x
   x = 443,273,092.60/21,601.57
6. Step 6: Final answer
   x = 20,520.41