Finding the Fourth Proportional to 90,649.88, 125,100.73 and 50,363.64

Step by Step Solution

1. Step 1: Write the proportion equation
   90,649.88 : 125,100.73 = 50,363.64 : x
2. Step 2: Convert to fraction form
   90,649.88/125,100.73 = 50,363.64/x
3. Step 3: Cross multiply
   90,649.88x = 125,100.73 × 50,363.64
4. Step 4: Simplify right side
   90,649.88x = 6,300,528,327.50
5. Step 5: Solve for x
   x = 6,300,528,327.50/90,649.88
6. Step 6: Final answer
   x = 69,503.99