Finding the Fourth Proportional to 51,300.18, 70,794.54 and 30,079.80

Step by Step Solution

1. Step 1: Write the proportion equation
   51,300.18 : 70,794.54 = 30,079.80 : x
2. Step 2: Convert to fraction form
   51,300.18/70,794.54 = 30,079.80/x
3. Step 3: Cross multiply
   51,300.18x = 70,794.54 × 30,079.80
4. Step 4: Simplify right side
   51,300.18x = 2,129,485,604.29
5. Step 5: Solve for x
   x = 2,129,485,604.29/51,300.18
6. Step 6: Final answer
   x = 41,510.29