Finding the Fourth Proportional to 15,401.64, 22,991.06 and 13,533.29

Step by Step Solution

1. Step 1: Write the proportion equation
   15,401.64 : 22,991.06 = 13,533.29 : x
2. Step 2: Convert to fraction form
   15,401.64/22,991.06 = 13,533.29/x
3. Step 3: Cross multiply
   15,401.64x = 22,991.06 × 13,533.29
4. Step 4: Simplify right side
   15,401.64x = 311,144,499.77
5. Step 5: Solve for x
   x = 311,144,499.77/15,401.64
6. Step 6: Final answer
   x = 20,202.04