Finding the Fourth Proportional to 118,782.94, 163,920.48 and 65,069.86

Step by Step Solution

1. Step 1: Write the proportion equation
   118,782.94 : 163,920.48 = 65,069.86 : x
2. Step 2: Convert to fraction form
   118,782.94/163,920.48 = 65,069.86/x
3. Step 3: Cross multiply
   118,782.94x = 163,920.48 × 65,069.86
4. Step 4: Simplify right side
   118,782.94x = 10,666,283,104.31
5. Step 5: Solve for x
   x = 10,666,283,104.31/118,782.94
6. Step 6: Final answer
   x = 89,796.43