Finding the Fourth Proportional to 115,373.58, 159,215.67 and 65,072.58

Step by Step Solution

1. Step 1: Write the proportion equation
   115,373.58 : 159,215.67 = 65,072.58 : x
2. Step 2: Convert to fraction form
   115,373.58/159,215.67 = 65,072.58/x
3. Step 3: Cross multiply
   115,373.58x = 159,215.67 × 65,072.58
4. Step 4: Simplify right side
   115,373.58x = 10,360,574,423.33
5. Step 5: Solve for x
   x = 10,360,574,423.33/115,373.58
6. Step 6: Final answer
   x = 89,800.23