Finding the Fourth Proportional to 118,942.34, 164,148.02 and 78,585.39

Step by Step Solution

1. Step 1: Write the proportion equation
   118,942.34 : 164,148.02 = 78,585.39 : x
2. Step 2: Convert to fraction form
   118,942.34/164,148.02 = 78,585.39/x
3. Step 3: Cross multiply
   118,942.34x = 164,148.02 × 78,585.39
4. Step 4: Simplify right side
   118,942.34x = 12,899,635,776.50
5. Step 5: Solve for x
   x = 12,899,635,776.50/118,942.34
6. Step 6: Final answer
   x = 108,452.85