Finding the Fourth Proportional to 78,404.26, 118,185.04 and 73,831.90

Step by Step Solution

1. Step 1: Write the proportion equation
   78,404.26 : 118,185.04 = 73,831.90 : x
2. Step 2: Convert to fraction form
   78,404.26/118,185.04 = 73,831.90/x
3. Step 3: Cross multiply
   78,404.26x = 118,185.04 × 73,831.90
4. Step 4: Simplify right side
   78,404.26x = 8,725,826,054.78
5. Step 5: Solve for x
   x = 8,725,826,054.78/78,404.26
6. Step 6: Final answer
   x = 111,292.75