Finding the Fourth Proportional to 89,290.72, 123,217.13 and 49,003.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,290.72 : 123,217.13 = 49,003.68 : x
2. Step 2: Convert to fraction form
   89,290.72/123,217.13 = 49,003.68/x
3. Step 3: Cross multiply
   89,290.72x = 123,217.13 × 49,003.68
4. Step 4: Simplify right side
   89,290.72x = 6,038,092,931.55
5. Step 5: Solve for x
   x = 6,038,092,931.55/89,290.72
6. Step 6: Final answer
   x = 67,622.85