Finding the Fourth Proportional to 82,912.72, 114,419.64 and 45,187

Step by Step Solution

1. Step 1: Write the proportion equation
   82,912.72 : 114,419.64 = 45,187 : x
2. Step 2: Convert to fraction form
   82,912.72/114,419.64 = 45,187/x
3. Step 3: Cross multiply
   82,912.72x = 114,419.64 × 45,187
4. Step 4: Simplify right side
   82,912.72x = 5,170,280,272.68
5. Step 5: Solve for x
   x = 5,170,280,272.68/82,912.72
6. Step 6: Final answer
   x = 62,358.11