Finding the Fourth Proportional to 118,554.67, 163,603.15 and 64,839.52

Step by Step Solution

1. Step 1: Write the proportion equation
   118,554.67 : 163,603.15 = 64,839.52 : x
2. Step 2: Convert to fraction form
   118,554.67/163,603.15 = 64,839.52/x
3. Step 3: Cross multiply
   118,554.67x = 163,603.15 × 64,839.52
4. Step 4: Simplify right side
   118,554.67x = 10,607,949,716.49
5. Step 5: Solve for x
   x = 10,607,949,716.49/118,554.67
6. Step 6: Final answer
   x = 89,477.28