Finding the Fourth Proportional to 32,142.45, 48,221.33 and 13,412.08

Step by Step Solution

1. Step 1: Write the proportion equation
   32,142.45 : 48,221.33 = 13,412.08 : x
2. Step 2: Convert to fraction form
   32,142.45/48,221.33 = 13,412.08/x
3. Step 3: Cross multiply
   32,142.45x = 48,221.33 × 13,412.08
4. Step 4: Simplify right side
   32,142.45x = 646,748,328.88
5. Step 5: Solve for x
   x = 646,748,328.88/32,142.45
6. Step 6: Final answer
   x = 20,121.31