Finding the Fourth Proportional to 118,043.42, 162,895.16 and 64,327.28

Step by Step Solution

1. Step 1: Write the proportion equation
   118,043.42 : 162,895.16 = 64,327.28 : x
2. Step 2: Convert to fraction form
   118,043.42/162,895.16 = 64,327.28/x
3. Step 3: Cross multiply
   118,043.42x = 162,895.16 × 64,327.28
4. Step 4: Simplify right side
   118,043.42x = 10,478,601,431.85
5. Step 5: Solve for x
   x = 10,478,601,431.85/118,043.42
6. Step 6: Final answer
   x = 88,769.05