Finding the Fourth Proportional to 89,217.50, 123,120.15 and 49,473.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,217.50 : 123,120.15 = 49,473.50 : x
2. Step 2: Convert to fraction form
   89,217.50/123,120.15 = 49,473.50/x
3. Step 3: Cross multiply
   89,217.50x = 123,120.15 × 49,473.50
4. Step 4: Simplify right side
   89,217.50x = 6,091,184,741.03
5. Step 5: Solve for x
   x = 6,091,184,741.03/89,217.50
6. Step 6: Final answer
   x = 68,273.43