Finding the Fourth Proportional to 78,167.48, 107,928.38 and 47,994.17

Step by Step Solution

1. Step 1: Write the proportion equation
   78,167.48 : 107,928.38 = 47,994.17 : x
2. Step 2: Convert to fraction form
   78,167.48/107,928.38 = 47,994.17/x
3. Step 3: Cross multiply
   78,167.48x = 107,928.38 × 47,994.17
4. Step 4: Simplify right side
   78,167.48x = 5,179,932,597.89
5. Step 5: Solve for x
   x = 5,179,932,597.89/78,167.48
6. Step 6: Final answer
   x = 66,267.11