Finding the Fourth Proportional to 90,426.84, 124,788.82 and 50,139.56

Step by Step Solution

1. Step 1: Write the proportion equation
   90,426.84 : 124,788.82 = 50,139.56 : x
2. Step 2: Convert to fraction form
   90,426.84/124,788.82 = 50,139.56/x
3. Step 3: Cross multiply
   90,426.84x = 124,788.82 × 50,139.56
4. Step 4: Simplify right side
   90,426.84x = 6,256,856,808.35
5. Step 5: Solve for x
   x = 6,256,856,808.35/90,426.84
6. Step 6: Final answer
   x = 69,192.48