Finding the Fourth Proportional to 89,497.05, 123,524.72 and 56,770.29

Step by Step Solution

1. Step 1: Write the proportion equation
   89,497.05 : 123,524.72 = 56,770.29 : x
2. Step 2: Convert to fraction form
   89,497.05/123,524.72 = 56,770.29/x
3. Step 3: Cross multiply
   89,497.05x = 123,524.72 × 56,770.29
4. Step 4: Simplify right side
   89,497.05x = 7,012,534,176.57
5. Step 5: Solve for x
   x = 7,012,534,176.57/89,497.05
6. Step 6: Final answer
   x = 78,354.92