Finding the Fourth Proportional to 89,457.30, 123,451.14 and 49,170.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,457.30 : 123,451.14 = 49,170.72 : x
2. Step 2: Convert to fraction form
   89,457.30/123,451.14 = 49,170.72/x
3. Step 3: Cross multiply
   89,457.30x = 123,451.14 × 49,170.72
4. Step 4: Simplify right side
   89,457.30x = 6,070,181,438.62
5. Step 5: Solve for x
   x = 6,070,181,438.62/89,457.30
6. Step 6: Final answer
   x = 67,855.63