Finding the Fourth Proportional to 115,244, 159,036.72 and 64,944.80

Step by Step Solution

1. Step 1: Write the proportion equation
   115,244 : 159,036.72 = 64,944.80 : x
2. Step 2: Convert to fraction form
   115,244/159,036.72 = 64,944.80/x
3. Step 3: Cross multiply
   115,244x = 159,036.72 × 64,944.80
4. Step 4: Simplify right side
   115,244x = 10,328,607,973.06
5. Step 5: Solve for x
   x = 10,328,607,973.06/115,244
6. Step 6: Final answer
   x = 89,623.82