Finding the Fourth Proportional to 78,855.98, 108,804.96 and 45,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,855.98 : 108,804.96 = 45,315.50 : x
2. Step 2: Convert to fraction form
   78,855.98/108,804.96 = 45,315.50/x
3. Step 3: Cross multiply
   78,855.98x = 108,804.96 × 45,315.50
4. Step 4: Simplify right side
   78,855.98x = 4,930,550,620.86
5. Step 5: Solve for x
   x = 4,930,550,620.86/78,855.98
6. Step 6: Final answer
   x = 62,526.02