Finding the Fourth Proportional to 64,947, 89,626.86 and 35,139

Step by Step Solution

1. Step 1: Write the proportion equation
   64,947 : 89,626.86 = 35,139 : x
2. Step 2: Convert to fraction form
   64,947/89,626.86 = 35,139/x
3. Step 3: Cross multiply
   64,947x = 89,626.86 × 35,139
4. Step 4: Simplify right side
   64,947x = 3,149,398,233.54
5. Step 5: Solve for x
   x = 3,149,398,233.54/64,947
6. Step 6: Final answer
   x = 48,491.82