Finding the Fourth Proportional to 115,940.31, 159,995.52 and 64,952.52

Step by Step Solution

1. Step 1: Write the proportion equation
   115,940.31 : 159,995.52 = 64,952.52 : x
2. Step 2: Convert to fraction form
   115,940.31/159,995.52 = 64,952.52/x
3. Step 3: Cross multiply
   115,940.31x = 159,995.52 × 64,952.52
4. Step 4: Simplify right side
   115,940.31x = 10,392,112,212.71
5. Step 5: Solve for x
   x = 10,392,112,212.71/115,940.31
6. Step 6: Final answer
   x = 89,633.30