Finding the Fourth Proportional to 78,908, 108,864.72 and 46,635.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,908 : 108,864.72 = 46,635.76 : x
2. Step 2: Convert to fraction form
   78,908/108,864.72 = 46,635.76/x
3. Step 3: Cross multiply
   78,908x = 108,864.72 × 46,635.76
4. Step 4: Simplify right side
   78,908x = 5,076,988,954.39
5. Step 5: Solve for x
   x = 5,076,988,954.39/78,908
6. Step 6: Final answer
   x = 64,340.61