Finding the Fourth Proportional to 118,709.82, 163,819.56 and 64,994.84

Step by Step Solution

1. Step 1: Write the proportion equation
   118,709.82 : 163,819.56 = 64,994.84 : x
2. Step 2: Convert to fraction form
   118,709.82/163,819.56 = 64,994.84/x
3. Step 3: Cross multiply
   118,709.82x = 163,819.56 × 64,994.84
4. Step 4: Simplify right side
   118,709.82x = 10,647,426,091.07
5. Step 5: Solve for x
   x = 10,647,426,091.07/118,709.82
6. Step 6: Final answer
   x = 89,692.88