Finding the Fourth Proportional to 115,887.03, 159,910.89 and 64,892.67

Step by Step Solution

1. Step 1: Write the proportion equation
   115,887.03 : 159,910.89 = 64,892.67 : x
2. Step 2: Convert to fraction form
   115,887.03/159,910.89 = 64,892.67/x
3. Step 3: Cross multiply
   115,887.03x = 159,910.89 × 64,892.67
4. Step 4: Simplify right side
   115,887.03x = 10,377,044,614.18
5. Step 5: Solve for x
   x = 10,377,044,614.18/115,887.03
6. Step 6: Final answer
   x = 89,544.49