Finding the Fourth Proportional to 89,360.67, 123,286.88 and 57,114.16

Step by Step Solution

1. Step 1: Write the proportion equation
   89,360.67 : 123,286.88 = 57,114.16 : x
2. Step 2: Convert to fraction form
   89,360.67/123,286.88 = 57,114.16/x
3. Step 3: Cross multiply
   89,360.67x = 123,286.88 × 57,114.16
4. Step 4: Simplify right side
   89,360.67x = 7,041,426,424.79
5. Step 5: Solve for x
   x = 7,041,426,424.79/89,360.67
6. Step 6: Final answer
   x = 78,797.82