Finding the Fourth Proportional to 90,426, 124,789.38 and 50,141.46

Step by Step Solution

1. Step 1: Write the proportion equation
   90,426 : 124,789.38 = 50,141.46 : x
2. Step 2: Convert to fraction form
   90,426/124,789.38 = 50,141.46/x
3. Step 3: Cross multiply
   90,426x = 124,789.38 × 50,141.46
4. Step 4: Simplify right side
   90,426x = 6,257,121,705.69
5. Step 5: Solve for x
   x = 6,257,121,705.69/90,426
6. Step 6: Final answer
   x = 69,196.05