Finding the Fourth Proportional to 48,429.41, 72,648.27 and 13,369.05

Step by Step Solution

1. Step 1: Write the proportion equation
   48,429.41 : 72,648.27 = 13,369.05 : x
2. Step 2: Convert to fraction form
   48,429.41/72,648.27 = 13,369.05/x
3. Step 3: Cross multiply
   48,429.41x = 72,648.27 × 13,369.05
4. Step 4: Simplify right side
   48,429.41x = 971,238,354.04
5. Step 5: Solve for x
   x = 971,238,354.04/48,429.41
6. Step 6: Final answer
   x = 20,054.72