Finding the Fourth Proportional to 89,245.28, 123,241.83 and 57,470.06

Step by Step Solution

1. Step 1: Write the proportion equation
   89,245.28 : 123,241.83 = 57,470.06 : x
2. Step 2: Convert to fraction form
   89,245.28/123,241.83 = 57,470.06/x
3. Step 3: Cross multiply
   89,245.28x = 123,241.83 × 57,470.06
4. Step 4: Simplify right side
   89,245.28x = 7,082,715,364.61
5. Step 5: Solve for x
   x = 7,082,715,364.61/89,245.28
6. Step 6: Final answer
   x = 79,362.35