Finding the Fourth Proportional to 64,556.10, 89,085.04 and 35,877.55

Step by Step Solution

1. Step 1: Write the proportion equation
   64,556.10 : 89,085.04 = 35,877.55 : x
2. Step 2: Convert to fraction form
   64,556.10/89,085.04 = 35,877.55/x
3. Step 3: Cross multiply
   64,556.10x = 89,085.04 × 35,877.55
4. Step 4: Simplify right side
   64,556.10x = 3,196,152,976.85
5. Step 5: Solve for x
   x = 3,196,152,976.85/64,556.10
6. Step 6: Final answer
   x = 49,509.70