Finding the Fourth Proportional to 115,606.59, 159,536.63 and 64,619.27

Step by Step Solution

1. Step 1: Write the proportion equation
   115,606.59 : 159,536.63 = 64,619.27 : x
2. Step 2: Convert to fraction form
   115,606.59/159,536.63 = 64,619.27/x
3. Step 3: Cross multiply
   115,606.59x = 159,536.63 × 64,619.27
4. Step 4: Simplify right side
   115,606.59x = 10,309,139,932.73
5. Step 5: Solve for x
   x = 10,309,139,932.73/115,606.59
6. Step 6: Final answer
   x = 89,174.33