Finding the Fourth Proportional to 78,137.56, 107,826.69 and 45,867.77

Step by Step Solution

1. Step 1: Write the proportion equation
   78,137.56 : 107,826.69 = 45,867.77 : x
2. Step 2: Convert to fraction form
   78,137.56/107,826.69 = 45,867.77/x
3. Step 3: Cross multiply
   78,137.56x = 107,826.69 × 45,867.77
4. Step 4: Simplify right side
   78,137.56x = 4,945,769,854.00
5. Step 5: Solve for x
   x = 4,945,769,854.00/78,137.56
6. Step 6: Final answer
   x = 63,295.68