Finding the Fourth Proportional to 116,222.40, 160,397.76 and 68,490.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,222.40 : 160,397.76 = 68,490.56 : x
2. Step 2: Convert to fraction form
   116,222.40/160,397.76 = 68,490.56/x
3. Step 3: Cross multiply
   116,222.40x = 160,397.76 × 68,490.56
4. Step 4: Simplify right side
   116,222.40x = 10,985,732,405.15
5. Step 5: Solve for x
   x = 10,985,732,405.15/116,222.40
6. Step 6: Final answer
   x = 94,523.37