Finding the Fourth Proportional to 32,961.72, 45,487.80 and 18,057.72

Step by Step Solution

1. Step 1: Write the proportion equation
   32,961.72 : 45,487.80 = 18,057.72 : x
2. Step 2: Convert to fraction form
   32,961.72/45,487.80 = 18,057.72/x
3. Step 3: Cross multiply
   32,961.72x = 45,487.80 × 18,057.72
4. Step 4: Simplify right side
   32,961.72x = 821,405,955.82
5. Step 5: Solve for x
   x = 821,405,955.82/32,961.72
6. Step 6: Final answer
   x = 24,920.00