Finding the Fourth Proportional to 118,925.26, 164,124.42 and 78,568.30

Step by Step Solution

1. Step 1: Write the proportion equation
   118,925.26 : 164,124.42 = 78,568.30 : x
2. Step 2: Convert to fraction form
   118,925.26/164,124.42 = 78,568.30/x
3. Step 3: Cross multiply
   118,925.26x = 164,124.42 × 78,568.30
4. Step 4: Simplify right side
   118,925.26x = 12,894,976,667.89
5. Step 5: Solve for x
   x = 12,894,976,667.89/118,925.26
6. Step 6: Final answer
   x = 108,429.25