Finding the Fourth Proportional to 90,451.50, 124,814.69 and 50,164.53

Step by Step Solution

1. Step 1: Write the proportion equation
   90,451.50 : 124,814.69 = 50,164.53 : x
2. Step 2: Convert to fraction form
   90,451.50/124,814.69 = 50,164.53/x
3. Step 3: Cross multiply
   90,451.50x = 124,814.69 × 50,164.53
4. Step 4: Simplify right side
   90,451.50x = 6,261,269,386.05
5. Step 5: Solve for x
   x = 6,261,269,386.05/90,451.50
6. Step 6: Final answer
   x = 69,222.40