Finding the Fourth Proportional to 116,099.34, 160,218.90 and 65,123.39

Step by Step Solution

1. Step 1: Write the proportion equation
   116,099.34 : 160,218.90 = 65,123.39 : x
2. Step 2: Convert to fraction form
   116,099.34/160,218.90 = 65,123.39/x
3. Step 3: Cross multiply
   116,099.34x = 160,218.90 × 65,123.39
4. Step 4: Simplify right side
   116,099.34x = 10,433,997,910.07
5. Step 5: Solve for x
   x = 10,433,997,910.07/116,099.34
6. Step 6: Final answer
   x = 89,871.29