Finding the Fourth Proportional to 115,426.50, 159,298.29 and 65,135.22

Step by Step Solution

1. Step 1: Write the proportion equation
   115,426.50 : 159,298.29 = 65,135.22 : x
2. Step 2: Convert to fraction form
   115,426.50/159,298.29 = 65,135.22/x
3. Step 3: Cross multiply
   115,426.50x = 159,298.29 × 65,135.22
4. Step 4: Simplify right side
   115,426.50x = 10,375,929,164.77
5. Step 5: Solve for x
   x = 10,375,929,164.77/115,426.50
6. Step 6: Final answer
   x = 89,892.09