Finding the Fourth Proportional to 76,762.54, 105,867.57 and 49,884.31

Step by Step Solution

1. Step 1: Write the proportion equation
   76,762.54 : 105,867.57 = 49,884.31 : x
2. Step 2: Convert to fraction form
   76,762.54/105,867.57 = 49,884.31/x
3. Step 3: Cross multiply
   76,762.54x = 105,867.57 × 49,884.31
4. Step 4: Simplify right side
   76,762.54x = 5,281,130,680.83
5. Step 5: Solve for x
   x = 5,281,130,680.83/76,762.54
6. Step 6: Final answer
   x = 68,798.28