Finding the Fourth Proportional to 116,300.47, 160,494.20 and 65,306.11

Step by Step Solution

1. Step 1: Write the proportion equation
   116,300.47 : 160,494.20 = 65,306.11 : x
2. Step 2: Convert to fraction form
   116,300.47/160,494.20 = 65,306.11/x
3. Step 3: Cross multiply
   116,300.47x = 160,494.20 × 65,306.11
4. Step 4: Simplify right side
   116,300.47x = 10,481,251,553.03
5. Step 5: Solve for x
   x = 10,481,251,553.03/116,300.47
6. Step 6: Final answer
   x = 90,122.18