Finding the Fourth Proportional to 115,785.22, 159,780.17 and 64,104.62

Step by Step Solution

1. Step 1: Write the proportion equation
   115,785.22 : 159,780.17 = 64,104.62 : x
2. Step 2: Convert to fraction form
   115,785.22/159,780.17 = 64,104.62/x
3. Step 3: Cross multiply
   115,785.22x = 159,780.17 × 64,104.62
4. Step 4: Simplify right side
   115,785.22x = 10,242,647,081.39
5. Step 5: Solve for x
   x = 10,242,647,081.39/115,785.22
6. Step 6: Final answer
   x = 88,462.47