Finding the Fourth Proportional to 7,181.89, 10,771.98 and 1,917.29

Step by Step Solution

1. Step 1: Write the proportion equation
   7,181.89 : 10,771.98 = 1,917.29 : x
2. Step 2: Convert to fraction form
   7,181.89/10,771.98 = 1,917.29/x
3. Step 3: Cross multiply
   7,181.89x = 10,771.98 × 1,917.29
4. Step 4: Simplify right side
   7,181.89x = 20,653,009.53
5. Step 5: Solve for x
   x = 20,653,009.53/7,181.89
6. Step 6: Final answer
   x = 2,875.71