Finding the Fourth Proportional to 89,457.62, 123,454.73 and 49,174.43

Step by Step Solution

1. Step 1: Write the proportion equation
   89,457.62 : 123,454.73 = 49,174.43 : x
2. Step 2: Convert to fraction form
   89,457.62/123,454.73 = 49,174.43/x
3. Step 3: Cross multiply
   89,457.62x = 123,454.73 × 49,174.43
4. Step 4: Simplify right side
   89,457.62x = 6,070,815,484.22
5. Step 5: Solve for x
   x = 6,070,815,484.22/89,457.62
6. Step 6: Final answer
   x = 67,862.48