Finding the Fourth Proportional to 90,118.06, 124,360.71 and 49,830.78

Step by Step Solution

1. Step 1: Write the proportion equation
   90,118.06 : 124,360.71 = 49,830.78 : x
2. Step 2: Convert to fraction form
   90,118.06/124,360.71 = 49,830.78/x
3. Step 3: Cross multiply
   90,118.06x = 124,360.71 × 49,830.78
4. Step 4: Simplify right side
   90,118.06x = 6,196,991,180.65
5. Step 5: Solve for x
   x = 6,196,991,180.65/90,118.06
6. Step 6: Final answer
   x = 68,765.25