Finding the Fourth Proportional to 89,457.21, 123,448.41 and 49,170.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89,457.21 : 123,448.41 = 49,170.96 : x
2. Step 2: Convert to fraction form
   89,457.21/123,448.41 = 49,170.96/x
3. Step 3: Cross multiply
   89,457.21x = 123,448.41 × 49,170.96
4. Step 4: Simplify right side
   89,457.21x = 6,070,076,830.17
5. Step 5: Solve for x
   x = 6,070,076,830.17/89,457.21
6. Step 6: Final answer
   x = 67,854.53