Finding the Fourth Proportional to 78,228.06, 107,914.92 and 49,499.39

Step by Step Solution

1. Step 1: Write the proportion equation
   78,228.06 : 107,914.92 = 49,499.39 : x
2. Step 2: Convert to fraction form
   78,228.06/107,914.92 = 49,499.39/x
3. Step 3: Cross multiply
   78,228.06x = 107,914.92 × 49,499.39
4. Step 4: Simplify right side
   78,228.06x = 5,341,722,172.32
5. Step 5: Solve for x
   x = 5,341,722,172.32/78,228.06
6. Step 6: Final answer
   x = 68,283.97