Finding the Fourth Proportional to 115,067.55, 158,788.79 and 64,082.43

Step by Step Solution

1. Step 1: Write the proportion equation
   115,067.55 : 158,788.79 = 64,082.43 : x
2. Step 2: Convert to fraction form
   115,067.55/158,788.79 = 64,082.43/x
3. Step 3: Cross multiply
   115,067.55x = 158,788.79 × 64,082.43
4. Step 4: Simplify right side
   115,067.55x = 10,175,571,199.55
5. Step 5: Solve for x
   x = 10,175,571,199.55/115,067.55
6. Step 6: Final answer
   x = 88,431.28