Finding the Fourth Proportional to 32,912.50, 45,419.28 and 18,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   32,912.50 : 45,419.28 = 18,008.50 : x
2. Step 2: Convert to fraction form
   32,912.50/45,419.28 = 18,008.50/x
3. Step 3: Cross multiply
   32,912.50x = 45,419.28 × 18,008.50
4. Step 4: Simplify right side
   32,912.50x = 817,933,103.88
5. Step 5: Solve for x
   x = 817,933,103.88/32,912.50
6. Step 6: Final answer
   x = 24,851.75