Finding the Fourth Proportional to 110,427.89, 152,208.52 and 78,120.77

Step by Step Solution

1. Step 1: Write the proportion equation
   110,427.89 : 152,208.52 = 78,120.77 : x
2. Step 2: Convert to fraction form
   110,427.89/152,208.52 = 78,120.77/x
3. Step 3: Cross multiply
   110,427.89x = 152,208.52 × 78,120.77
4. Step 4: Simplify right side
   110,427.89x = 11,890,645,826.62
5. Step 5: Solve for x
   x = 11,890,645,826.62/110,427.89
6. Step 6: Final answer
   x = 107,677.93