Finding the Fourth Proportional to 116,243.93, 160,416.54 and 65,256.77

Step by Step Solution

1. Step 1: Write the proportion equation
   116,243.93 : 160,416.54 = 65,256.77 : x
2. Step 2: Convert to fraction form
   116,243.93/160,416.54 = 65,256.77/x
3. Step 3: Cross multiply
   116,243.93x = 160,416.54 × 65,256.77
4. Step 4: Simplify right side
   116,243.93x = 10,468,264,452.89
5. Step 5: Solve for x
   x = 10,468,264,452.89/116,243.93
6. Step 6: Final answer
   x = 90,054.29