Finding the Fourth Proportional to 116,568.61, 160,922.78 and 76,344.01

Step by Step Solution

1. Step 1: Write the proportion equation
   116,568.61 : 160,922.78 = 76,344.01 : x
2. Step 2: Convert to fraction form
   116,568.61/160,922.78 = 76,344.01/x
3. Step 3: Cross multiply
   116,568.61x = 160,922.78 × 76,344.01
4. Step 4: Simplify right side
   116,568.61x = 12,285,490,325.55
5. Step 5: Solve for x
   x = 12,285,490,325.55/116,568.61
6. Step 6: Final answer
   x = 105,392.78