Finding the Fourth Proportional to 115,373.17, 159,214.89 and 65,072.17

Step by Step Solution

1. Step 1: Write the proportion equation
   115,373.17 : 159,214.89 = 65,072.17 : x
2. Step 2: Convert to fraction form
   115,373.17/159,214.89 = 65,072.17/x
3. Step 3: Cross multiply
   115,373.17x = 159,214.89 × 65,072.17
4. Step 4: Simplify right side
   115,373.17x = 10,360,458,388.61
5. Step 5: Solve for x
   x = 10,360,458,388.61/115,373.17
6. Step 6: Final answer
   x = 89,799.55