Finding the Fourth Proportional to 77,478.51, 116,266.89 and 33,105.60

Step by Step Solution

1. Step 1: Write the proportion equation
   77,478.51 : 116,266.89 = 33,105.60 : x
2. Step 2: Convert to fraction form
   77,478.51/116,266.89 = 33,105.60/x
3. Step 3: Cross multiply
   77,478.51x = 116,266.89 × 33,105.60
4. Step 4: Simplify right side
   77,478.51x = 3,849,085,153.58
5. Step 5: Solve for x
   x = 3,849,085,153.58/77,478.51
6. Step 6: Final answer
   x = 49,679.39