Finding the Fourth Proportional to 14,725.72, 21,948.89 and 13,602.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,725.72 : 21,948.89 = 13,602.16 : x
2. Step 2: Convert to fraction form
   14,725.72/21,948.89 = 13,602.16/x
3. Step 3: Cross multiply
   14,725.72x = 21,948.89 × 13,602.16
4. Step 4: Simplify right side
   14,725.72x = 298,552,313.60
5. Step 5: Solve for x
   x = 298,552,313.60/14,725.72
6. Step 6: Final answer
   x = 20,274.21