Finding the Fourth Proportional to 115,314.72, 159,134.05 and 65,013.36

Step by Step Solution

1. Step 1: Write the proportion equation
   115,314.72 : 159,134.05 = 65,013.36 : x
2. Step 2: Convert to fraction form
   115,314.72/159,134.05 = 65,013.36/x
3. Step 3: Cross multiply
   115,314.72x = 159,134.05 × 65,013.36
4. Step 4: Simplify right side
   115,314.72x = 10,345,839,280.91
5. Step 5: Solve for x
   x = 10,345,839,280.91/115,314.72
6. Step 6: Final answer
   x = 89,718.29