Finding the Fourth Proportional to 78,921.82, 108,894.18 and 47,084.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,921.82 : 108,894.18 = 47,084.50 : x
2. Step 2: Convert to fraction form
   78,921.82/108,894.18 = 47,084.50/x
3. Step 3: Cross multiply
   78,921.82x = 108,894.18 × 47,084.50
4. Step 4: Simplify right side
   78,921.82x = 5,127,228,018.21
5. Step 5: Solve for x
   x = 5,127,228,018.21/78,921.82
6. Step 6: Final answer
   x = 64,965.91