Finding the Fourth Proportional to 48,610.83, 72,916.55 and 13,550.79

Step by Step Solution

1. Step 1: Write the proportion equation
   48,610.83 : 72,916.55 = 13,550.79 : x
2. Step 2: Convert to fraction form
   48,610.83/72,916.55 = 13,550.79/x
3. Step 3: Cross multiply
   48,610.83x = 72,916.55 × 13,550.79
4. Step 4: Simplify right side
   48,610.83x = 988,076,788.82
5. Step 5: Solve for x
   x = 988,076,788.82/48,610.83
6. Step 6: Final answer
   x = 20,326.27