Finding the Fourth Proportional to 89,592.87, 123,638.18 and 49,309.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,592.87 : 123,638.18 = 49,309.50 : x
2. Step 2: Convert to fraction form
   89,592.87/123,638.18 = 49,309.50/x
3. Step 3: Cross multiply
   89,592.87x = 123,638.18 × 49,309.50
4. Step 4: Simplify right side
   89,592.87x = 6,096,536,590.16
5. Step 5: Solve for x
   x = 6,096,536,590.16/89,592.87
6. Step 6: Final answer
   x = 68,047.12