Finding the Fourth Proportional to 118,790.07, 163,934.37 and 65,075.06

Step by Step Solution

1. Step 1: Write the proportion equation
   118,790.07 : 163,934.37 = 65,075.06 : x
2. Step 2: Convert to fraction form
   118,790.07/163,934.37 = 65,075.06/x
3. Step 3: Cross multiply
   118,790.07x = 163,934.37 × 65,075.06
4. Step 4: Simplify right side
   118,790.07x = 10,668,039,373.65
5. Step 5: Solve for x
   x = 10,668,039,373.65/118,790.07
6. Step 6: Final answer
   x = 89,805.82