Finding the Fourth Proportional to 115,188.84, 158,960.34 and 64,887.48

Step by Step Solution

1. Step 1: Write the proportion equation
   115,188.84 : 158,960.34 = 64,887.48 : x
2. Step 2: Convert to fraction form
   115,188.84/158,960.34 = 64,887.48/x
3. Step 3: Cross multiply
   115,188.84x = 158,960.34 × 64,887.48
4. Step 4: Simplify right side
   115,188.84x = 10,314,535,882.54
5. Step 5: Solve for x
   x = 10,314,535,882.54/115,188.84
6. Step 6: Final answer
   x = 89,544.58