Finding the Fourth Proportional to 116,483.98, 160,728.24 and 65,489.98

Step by Step Solution

1. Step 1: Write the proportion equation
   116,483.98 : 160,728.24 = 65,489.98 : x
2. Step 2: Convert to fraction form
   116,483.98/160,728.24 = 65,489.98/x
3. Step 3: Cross multiply
   116,483.98x = 160,728.24 × 65,489.98
4. Step 4: Simplify right side
   116,483.98x = 10,526,089,223.04
5. Step 5: Solve for x
   x = 10,526,089,223.04/116,483.98
6. Step 6: Final answer
   x = 90,365.12