Finding the Fourth Proportional to 116,406, 160,640.28 and 63,414

Step by Step Solution

1. Step 1: Write the proportion equation
   116,406 : 160,640.28 = 63,414 : x
2. Step 2: Convert to fraction form
   116,406/160,640.28 = 63,414/x
3. Step 3: Cross multiply
   116,406x = 160,640.28 × 63,414
4. Step 4: Simplify right side
   116,406x = 10,186,842,715.92
5. Step 5: Solve for x
   x = 10,186,842,715.92/116,406
6. Step 6: Final answer
   x = 87,511.32