Finding the Fourth Proportional to 78,909, 108,866.10 and 46,636.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,909 : 108,866.10 = 46,636.76 : x
2. Step 2: Convert to fraction form
   78,909/108,866.10 = 46,636.76/x
3. Step 3: Cross multiply
   78,909x = 108,866.10 × 46,636.76
4. Step 4: Simplify right side
   78,909x = 5,077,162,177.84
5. Step 5: Solve for x
   x = 5,077,162,177.84/78,909
6. Step 6: Final answer
   x = 64,341.99