Finding the Fourth Proportional to 85,826.52, 128,759.24 and 30,422.52

Step by Step Solution

1. Step 1: Write the proportion equation
   85,826.52 : 128,759.24 = 30,422.52 : x
2. Step 2: Convert to fraction form
   85,826.52/128,759.24 = 30,422.52/x
3. Step 3: Cross multiply
   85,826.52x = 128,759.24 × 30,422.52
4. Step 4: Simplify right side
   85,826.52x = 3,917,180,554.08
5. Step 5: Solve for x
   x = 3,917,180,554.08/85,826.52
6. Step 6: Final answer
   x = 45,640.68