Finding the Fourth Proportional to 116,401.86, 160,647.84 and 65,414.52

Step by Step Solution

1. Step 1: Write the proportion equation
   116,401.86 : 160,647.84 = 65,414.52 : x
2. Step 2: Convert to fraction form
   116,401.86/160,647.84 = 65,414.52/x
3. Step 3: Cross multiply
   116,401.86x = 160,647.84 × 65,414.52
4. Step 4: Simplify right side
   116,401.86x = 10,508,701,342.64
5. Step 5: Solve for x
   x = 10,508,701,342.64/116,401.86
6. Step 6: Final answer
   x = 90,279.50