Finding the Fourth Proportional to 89,931.12, 124,106.76 and 49,644.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,931.12 : 124,106.76 = 49,644.72 : x
2. Step 2: Convert to fraction form
   89,931.12/124,106.76 = 49,644.72/x
3. Step 3: Cross multiply
   89,931.12x = 124,106.76 × 49,644.72
4. Step 4: Simplify right side
   89,931.12x = 6,161,245,350.31
5. Step 5: Solve for x
   x = 6,161,245,350.31/89,931.12
6. Step 6: Final answer
   x = 68,510.72