Finding the Fourth Proportional to 50,997.05, 76,495.51 and 13,557.15

Step by Step Solution

1. Step 1: Write the proportion equation
   50,997.05 : 76,495.51 = 13,557.15 : x
2. Step 2: Convert to fraction form
   50,997.05/76,495.51 = 13,557.15/x
3. Step 3: Cross multiply
   50,997.05x = 76,495.51 × 13,557.15
4. Step 4: Simplify right side
   50,997.05x = 1,037,061,099.57
5. Step 5: Solve for x
   x = 1,037,061,099.57/50,997.05
6. Step 6: Final answer
   x = 20,335.71