Finding the Fourth Proportional to 5,093.98, 7,641.79 and 2,172.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,093.98 : 7,641.79 = 2,172.31 : x
2. Step 2: Convert to fraction form
   5,093.98/7,641.79 = 2,172.31/x
3. Step 3: Cross multiply
   5,093.98x = 7,641.79 × 2,172.31
4. Step 4: Simplify right side
   5,093.98x = 16,600,312.30
5. Step 5: Solve for x
   x = 16,600,312.30/5,093.98
6. Step 6: Final answer
   x = 3,258.81