Finding the Fourth Proportional to 90,081.50, 124,308.61 and 49,244.87

Step by Step Solution

1. Step 1: Write the proportion equation
   90,081.50 : 124,308.61 = 49,244.87 : x
2. Step 2: Convert to fraction form
   90,081.50/124,308.61 = 49,244.87/x
3. Step 3: Cross multiply
   90,081.50x = 124,308.61 × 49,244.87
4. Step 4: Simplify right side
   90,081.50x = 6,121,561,597.92
5. Step 5: Solve for x
   x = 6,121,561,597.92/90,081.50
6. Step 6: Final answer
   x = 67,955.81