Finding the Fourth Proportional to 32,401.69, 48,621.67 and 13,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   32,401.69 : 48,621.67 = 13,680.50 : x
2. Step 2: Convert to fraction form
   32,401.69/48,621.67 = 13,680.50/x
3. Step 3: Cross multiply
   32,401.69x = 48,621.67 × 13,680.50
4. Step 4: Simplify right side
   32,401.69x = 665,168,479.13
5. Step 5: Solve for x
   x = 665,168,479.13/32,401.69
6. Step 6: Final answer
   x = 20,528.82