Finding the Fourth Proportional to 115,109.17, 158,857.94 and 64,811.41

Step by Step Solution

1. Step 1: Write the proportion equation
   115,109.17 : 158,857.94 = 64,811.41 : x
2. Step 2: Convert to fraction form
   115,109.17/158,857.94 = 64,811.41/x
3. Step 3: Cross multiply
   115,109.17x = 158,857.94 × 64,811.41
4. Step 4: Simplify right side
   115,109.17x = 10,295,806,845.98
5. Step 5: Solve for x
   x = 10,295,806,845.98/115,109.17
6. Step 6: Final answer
   x = 89,443.85