Finding the Fourth Proportional to 64,887.69, 89,547.15 and 37,661.73

Step by Step Solution

1. Step 1: Write the proportion equation
   64,887.69 : 89,547.15 = 37,661.73 : x
2. Step 2: Convert to fraction form
   64,887.69/89,547.15 = 37,661.73/x
3. Step 3: Cross multiply
   64,887.69x = 89,547.15 × 37,661.73
4. Step 4: Simplify right side
   64,887.69x = 3,372,500,894.70
5. Step 5: Solve for x
   x = 3,372,500,894.70/64,887.69
6. Step 6: Final answer
   x = 51,974.43