Finding the Fourth Proportional to 14,577.18, 20,105.85 and 9,533.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,577.18 : 20,105.85 = 9,533.31 : x
2. Step 2: Convert to fraction form
   14,577.18/20,105.85 = 9,533.31/x
3. Step 3: Cross multiply
   14,577.18x = 20,105.85 × 9,533.31
4. Step 4: Simplify right side
   14,577.18x = 191,675,300.86
5. Step 5: Solve for x
   x = 191,675,300.86/14,577.18
6. Step 6: Final answer
   x = 13,149.00