Finding the Fourth Proportional to 15,401.52, 22,990.86 and 13,533.18

Step by Step Solution

1. Step 1: Write the proportion equation
   15,401.52 : 22,990.86 = 13,533.18 : x
2. Step 2: Convert to fraction form
   15,401.52/22,990.86 = 13,533.18/x
3. Step 3: Cross multiply
   15,401.52x = 22,990.86 × 13,533.18
4. Step 4: Simplify right side
   15,401.52x = 311,139,446.73
5. Step 5: Solve for x
   x = 311,139,446.73/15,401.52
6. Step 6: Final answer
   x = 20,201.87