Finding the Fourth Proportional to 82,940.90, 114,456.57 and 51,108.74

Step by Step Solution

1. Step 1: Write the proportion equation
   82,940.90 : 114,456.57 = 51,108.74 : x
2. Step 2: Convert to fraction form
   82,940.90/114,456.57 = 51,108.74/x
3. Step 3: Cross multiply
   82,940.90x = 114,456.57 × 51,108.74
4. Step 4: Simplify right side
   82,940.90x = 5,849,731,077.42
5. Step 5: Solve for x
   x = 5,849,731,077.42/82,940.90
6. Step 6: Final answer
   x = 70,528.91