Finding the Fourth Proportional to 116,013.18, 160,098.18 and 65,712.18

Step by Step Solution

1. Step 1: Write the proportion equation
   116,013.18 : 160,098.18 = 65,712.18 : x
2. Step 2: Convert to fraction form
   116,013.18/160,098.18 = 65,712.18/x
3. Step 3: Cross multiply
   116,013.18x = 160,098.18 × 65,712.18
4. Step 4: Simplify right side
   116,013.18x = 10,520,400,421.83
5. Step 5: Solve for x
   x = 10,520,400,421.83/116,013.18
6. Step 6: Final answer
   x = 90,682.80