Finding the Fourth Proportional to 70,386.54, 105,314.94 and 49,367.60

Step by Step Solution

1. Step 1: Write the proportion equation
   70,386.54 : 105,314.94 = 49,367.60 : x
2. Step 2: Convert to fraction form
   70,386.54/105,314.94 = 49,367.60/x
3. Step 3: Cross multiply
   70,386.54x = 105,314.94 × 49,367.60
4. Step 4: Simplify right side
   70,386.54x = 5,199,145,700.30
5. Step 5: Solve for x
   x = 5,199,145,700.30/70,386.54
6. Step 6: Final answer
   x = 73,865.62