Finding the Fourth Proportional to 65,300.94, 90,152.28 and 49,958.61

Step by Step Solution

1. Step 1: Write the proportion equation
   65,300.94 : 90,152.28 = 49,958.61 : x
2. Step 2: Convert to fraction form
   65,300.94/90,152.28 = 49,958.61/x
3. Step 3: Cross multiply
   65,300.94x = 90,152.28 × 49,958.61
4. Step 4: Simplify right side
   65,300.94x = 4,503,882,597.13
5. Step 5: Solve for x
   x = 4,503,882,597.13/65,300.94
6. Step 6: Final answer
   x = 68,971.18