Finding the Fourth Proportional to 116,387, 160,602.13 and 65,391.62

Step by Step Solution

1. Step 1: Write the proportion equation
   116,387 : 160,602.13 = 65,391.62 : x
2. Step 2: Convert to fraction form
   116,387/160,602.13 = 65,391.62/x
3. Step 3: Cross multiply
   116,387x = 160,602.13 × 65,391.62
4. Step 4: Simplify right side
   116,387x = 10,502,033,456.15
5. Step 5: Solve for x
   x = 10,502,033,456.15/116,387
6. Step 6: Final answer
   x = 90,233.73