Finding the Fourth Proportional to 51,096.90, 70,515.09 and 30,949.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,096.90 : 70,515.09 = 30,949.50 : x
2. Step 2: Convert to fraction form
   51,096.90/70,515.09 = 30,949.50/x
3. Step 3: Cross multiply
   51,096.90x = 70,515.09 × 30,949.50
4. Step 4: Simplify right side
   51,096.90x = 2,182,406,777.96
5. Step 5: Solve for x
   x = 2,182,406,777.96/51,096.90
6. Step 6: Final answer
   x = 42,711.14