Finding the Fourth Proportional to 48,464.72, 72,683.64 and 13,401.68

Step by Step Solution

1. Step 1: Write the proportion equation
   48,464.72 : 72,683.64 = 13,401.68 : x
2. Step 2: Convert to fraction form
   48,464.72/72,683.64 = 13,401.68/x
3. Step 3: Cross multiply
   48,464.72x = 72,683.64 × 13,401.68
4. Step 4: Simplify right side
   48,464.72x = 974,082,884.52
5. Step 5: Solve for x
   x = 974,082,884.52/48,464.72
6. Step 6: Final answer
   x = 20,098.80