Finding the Fourth Proportional to 115,839.32, 159,821.10 and 64,844.55

Step by Step Solution

1. Step 1: Write the proportion equation
   115,839.32 : 159,821.10 = 64,844.55 : x
2. Step 2: Convert to fraction form
   115,839.32/159,821.10 = 64,844.55/x
3. Step 3: Cross multiply
   115,839.32x = 159,821.10 × 64,844.55
4. Step 4: Simplify right side
   115,839.32x = 10,363,527,310.01
5. Step 5: Solve for x
   x = 10,363,527,310.01/115,839.32
6. Step 6: Final answer
   x = 89,464.68