Finding the Fourth Proportional to 51,300.82, 70,776.12 and 30,072.34

Step by Step Solution

1. Step 1: Write the proportion equation
   51,300.82 : 70,776.12 = 30,072.34 : x
2. Step 2: Convert to fraction form
   51,300.82/70,776.12 = 30,072.34/x
3. Step 3: Cross multiply
   51,300.82x = 70,776.12 × 30,072.34
4. Step 4: Simplify right side
   51,300.82x = 2,128,403,544.52
5. Step 5: Solve for x
   x = 2,128,403,544.52/51,300.82
6. Step 6: Final answer
   x = 41,488.68