Finding the Fourth Proportional to 115,345.18, 159,205.35 and 65,073.34

Step by Step Solution

1. Step 1: Write the proportion equation
   115,345.18 : 159,205.35 = 65,073.34 : x
2. Step 2: Convert to fraction form
   115,345.18/159,205.35 = 65,073.34/x
3. Step 3: Cross multiply
   115,345.18x = 159,205.35 × 65,073.34
4. Step 4: Simplify right side
   115,345.18x = 10,360,023,870.37
5. Step 5: Solve for x
   x = 10,360,023,870.37/115,345.18
6. Step 6: Final answer
   x = 89,817.57