Finding the Fourth Proportional to 115,464.33, 159,326.72 and 64,479.89

Step by Step Solution

1. Step 1: Write the proportion equation
   115,464.33 : 159,326.72 = 64,479.89 : x
2. Step 2: Convert to fraction form
   115,464.33/159,326.72 = 64,479.89/x
3. Step 3: Cross multiply
   115,464.33x = 159,326.72 × 64,479.89
4. Step 4: Simplify right side
   115,464.33x = 10,273,369,455.58
5. Step 5: Solve for x
   x = 10,273,369,455.58/115,464.33
6. Step 6: Final answer
   x = 88,974.40