Finding the Fourth Proportional to 118,941.90, 164,147.34 and 78,584.94

Step by Step Solution

1. Step 1: Write the proportion equation
   118,941.90 : 164,147.34 = 78,584.94 : x
2. Step 2: Convert to fraction form
   118,941.90/164,147.34 = 78,584.94/x
3. Step 3: Cross multiply
   118,941.90x = 164,147.34 × 78,584.94
4. Step 4: Simplify right side
   118,941.90x = 12,899,508,865.06
5. Step 5: Solve for x
   x = 12,899,508,865.06/118,941.90
6. Step 6: Final answer
   x = 108,452.18