Finding the Fourth Proportional to 89,674.67, 123,751.40 and 53,865.29

Step by Step Solution

1. Step 1: Write the proportion equation
   89,674.67 : 123,751.40 = 53,865.29 : x
2. Step 2: Convert to fraction form
   89,674.67/123,751.40 = 53,865.29/x
3. Step 3: Cross multiply
   89,674.67x = 123,751.40 × 53,865.29
4. Step 4: Simplify right side
   89,674.67x = 6,665,904,160.82
5. Step 5: Solve for x
   x = 6,665,904,160.82/89,674.67
6. Step 6: Final answer
   x = 74,334.31