Finding the Fourth Proportional to 116,213.52, 160,367.94 and 65,221.38

Step by Step Solution

1. Step 1: Write the proportion equation
   116,213.52 : 160,367.94 = 65,221.38 : x
2. Step 2: Convert to fraction form
   116,213.52/160,367.94 = 65,221.38/x
3. Step 3: Cross multiply
   116,213.52x = 160,367.94 × 65,221.38
4. Step 4: Simplify right side
   116,213.52x = 10,459,418,354.56
5. Step 5: Solve for x
   x = 10,459,418,354.56/116,213.52
6. Step 6: Final answer
   x = 90,001.73