Finding the Fourth Proportional to 47,813.81, 65,945.98 and 30,820.82

Step by Step Solution

1. Step 1: Write the proportion equation
   47,813.81 : 65,945.98 = 30,820.82 : x
2. Step 2: Convert to fraction form
   47,813.81/65,945.98 = 30,820.82/x
3. Step 3: Cross multiply
   47,813.81x = 65,945.98 × 30,820.82
4. Step 4: Simplify right side
   47,813.81x = 2,032,508,888.10
5. Step 5: Solve for x
   x = 2,032,508,888.10/47,813.81
6. Step 6: Final answer
   x = 42,508.83