Finding the Fourth Proportional to 32,419.48, 48,636.78 and 13,698.76

Step by Step Solution

1. Step 1: Write the proportion equation
   32,419.48 : 48,636.78 = 13,698.76 : x
2. Step 2: Convert to fraction form
   32,419.48/48,636.78 = 13,698.76/x
3. Step 3: Cross multiply
   32,419.48x = 48,636.78 × 13,698.76
4. Step 4: Simplify right side
   32,419.48x = 666,263,576.39
5. Step 5: Solve for x
   x = 666,263,576.39/32,419.48
6. Step 6: Final answer
   x = 20,551.33