Finding the Fourth Proportional to 78,112.07, 117,168.27 and 28,227.39

Step by Step Solution

1. Step 1: Write the proportion equation
   78,112.07 : 117,168.27 = 28,227.39 : x
2. Step 2: Convert to fraction form
   78,112.07/117,168.27 = 28,227.39/x
3. Step 3: Cross multiply
   78,112.07x = 117,168.27 × 28,227.39
4. Step 4: Simplify right side
   78,112.07x = 3,307,355,055.07
5. Step 5: Solve for x
   x = 3,307,355,055.07/78,112.07
6. Step 6: Final answer
   x = 42,341.15