Finding the Fourth Proportional to 32,168.16, 48,235.78 and 13,443.09

Step by Step Solution

1. Step 1: Write the proportion equation
   32,168.16 : 48,235.78 = 13,443.09 : x
2. Step 2: Convert to fraction form
   32,168.16/48,235.78 = 13,443.09/x
3. Step 3: Cross multiply
   32,168.16x = 48,235.78 × 13,443.09
4. Step 4: Simplify right side
   32,168.16x = 648,437,931.76
5. Step 5: Solve for x
   x = 648,437,931.76/32,168.16
6. Step 6: Final answer
   x = 20,157.76