Finding the Fourth Proportional to 115,535.82, 159,436.50 and 64,548.94

Step by Step Solution

1. Step 1: Write the proportion equation
   115,535.82 : 159,436.50 = 64,548.94 : x
2. Step 2: Convert to fraction form
   115,535.82/159,436.50 = 64,548.94/x
3. Step 3: Cross multiply
   115,535.82x = 159,436.50 × 64,548.94
4. Step 4: Simplify right side
   115,535.82x = 10,291,456,463.73
5. Step 5: Solve for x
   x = 10,291,456,463.73/115,535.82
6. Step 6: Final answer
   x = 89,075.89