Finding the Fourth Proportional to 90,449.31, 124,826.67 and 50,170.69

Step by Step Solution

1. Step 1: Write the proportion equation
   90,449.31 : 124,826.67 = 50,170.69 : x
2. Step 2: Convert to fraction form
   90,449.31/124,826.67 = 50,170.69/x
3. Step 3: Cross multiply
   90,449.31x = 124,826.67 × 50,170.69
4. Step 4: Simplify right side
   90,449.31x = 6,262,640,320.34
5. Step 5: Solve for x
   x = 6,262,640,320.34/90,449.31
6. Step 6: Final answer
   x = 69,239.23