Finding the Fourth Proportional to 118,834.75, 178,250.43 and 28,878.12

Step by Step Solution

1. Step 1: Write the proportion equation
   118,834.75 : 178,250.43 = 28,878.12 : x
2. Step 2: Convert to fraction form
   118,834.75/178,250.43 = 28,878.12/x
3. Step 3: Cross multiply
   118,834.75x = 178,250.43 × 28,878.12
4. Step 4: Simplify right side
   118,834.75x = 5,147,538,084.32
5. Step 5: Solve for x
   x = 5,147,538,084.32/118,834.75
6. Step 6: Final answer
   x = 43,316.77