Finding the Fourth Proportional to 115,314.34, 159,133.52 and 65,012.98

Step by Step Solution

1. Step 1: Write the proportion equation
   115,314.34 : 159,133.52 = 65,012.98 : x
2. Step 2: Convert to fraction form
   115,314.34/159,133.52 = 65,012.98/x
3. Step 3: Cross multiply
   115,314.34x = 159,133.52 × 65,012.98
4. Step 4: Simplify right side
   115,314.34x = 10,345,744,353.09
5. Step 5: Solve for x
   x = 10,345,744,353.09/115,314.34
6. Step 6: Final answer
   x = 89,717.76