Finding the Fourth Proportional to 89,211.50, 123,111.87 and 49,467.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,211.50 : 123,111.87 = 49,467.50 : x
2. Step 2: Convert to fraction form
   89,211.50/123,111.87 = 49,467.50/x
3. Step 3: Cross multiply
   89,211.50x = 123,111.87 × 49,467.50
4. Step 4: Simplify right side
   89,211.50x = 6,090,036,429.23
5. Step 5: Solve for x
   x = 6,090,036,429.23/89,211.50
6. Step 6: Final answer
   x = 68,265.15