Finding the Fourth Proportional to 64,894.78, 89,595.33 and 49,758.35

Step by Step Solution

1. Step 1: Write the proportion equation
   64,894.78 : 89,595.33 = 49,758.35 : x
2. Step 2: Convert to fraction form
   64,894.78/89,595.33 = 49,758.35/x
3. Step 3: Cross multiply
   64,894.78x = 89,595.33 × 49,758.35
4. Step 4: Simplify right side
   64,894.78x = 4,458,115,433.83
5. Step 5: Solve for x
   x = 4,458,115,433.83/64,894.78
6. Step 6: Final answer
   x = 68,697.60