Finding the Fourth Proportional to 115,064.25, 158,706.86 and 76,804.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,064.25 : 158,706.86 = 76,804.50 : x
2. Step 2: Convert to fraction form
   115,064.25/158,706.86 = 76,804.50/x
3. Step 3: Cross multiply
   115,064.25x = 158,706.86 × 76,804.50
4. Step 4: Simplify right side
   115,064.25x = 12,189,400,644.85
5. Step 5: Solve for x
   x = 12,189,400,644.85/115,064.25
6. Step 6: Final answer
   x = 105,935.60