Finding the Fourth Proportional to 89,350.40, 123,306.72 and 59,188.16

Step by Step Solution

1. Step 1: Write the proportion equation
   89,350.40 : 123,306.72 = 59,188.16 : x
2. Step 2: Convert to fraction form
   89,350.40/123,306.72 = 59,188.16/x
3. Step 3: Cross multiply
   89,350.40x = 123,306.72 × 59,188.16
4. Step 4: Simplify right side
   89,350.40x = 7,298,297,872.44
5. Step 5: Solve for x
   x = 7,298,297,872.44/89,350.40
6. Step 6: Final answer
   x = 81,681.76