Finding the Fourth Proportional to 118,738.42, 163,862.72 and 65,028.53

Step by Step Solution

1. Step 1: Write the proportion equation
   118,738.42 : 163,862.72 = 65,028.53 : x
2. Step 2: Convert to fraction form
   118,738.42/163,862.72 = 65,028.53/x
3. Step 3: Cross multiply
   118,738.42x = 163,862.72 × 65,028.53
4. Step 4: Simplify right side
   118,738.42x = 10,655,751,803.40
5. Step 5: Solve for x
   x = 10,655,751,803.40/118,738.42
6. Step 6: Final answer
   x = 89,741.40