Finding the Fourth Proportional to 89,690.50, 123,748.26 and 62,436.04

Step by Step Solution

1. Step 1: Write the proportion equation
   89,690.50 : 123,748.26 = 62,436.04 : x
2. Step 2: Convert to fraction form
   89,690.50/123,748.26 = 62,436.04/x
3. Step 3: Cross multiply
   89,690.50x = 123,748.26 × 62,436.04
4. Step 4: Simplify right side
   89,690.50x = 7,726,351,311.29
5. Step 5: Solve for x
   x = 7,726,351,311.29/89,690.50
6. Step 6: Final answer
   x = 86,144.59