Finding the Fourth Proportional to 116,536.68, 160,815.54 and 65,548.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,536.68 : 160,815.54 = 65,548.50 : x
2. Step 2: Convert to fraction form
   116,536.68/160,815.54 = 65,548.50/x
3. Step 3: Cross multiply
   116,536.68x = 160,815.54 × 65,548.50
4. Step 4: Simplify right side
   116,536.68x = 10,541,217,423.69
5. Step 5: Solve for x
   x = 10,541,217,423.69/116,536.68
6. Step 6: Final answer
   x = 90,454.07