Finding the Fourth Proportional to 78,245.89, 107,969.43 and 46,408.57

Step by Step Solution

1. Step 1: Write the proportion equation
   78,245.89 : 107,969.43 = 46,408.57 : x
2. Step 2: Convert to fraction form
   78,245.89/107,969.43 = 46,408.57/x
3. Step 3: Cross multiply
   78,245.89x = 107,969.43 × 46,408.57
4. Step 4: Simplify right side
   78,245.89x = 5,010,706,617.97
5. Step 5: Solve for x
   x = 5,010,706,617.97/78,245.89
6. Step 6: Final answer
   x = 64,037.95