Finding the Fourth Proportional to 70,664.06, 105,995.83 and 67,116.47

Step by Step Solution

1. Step 1: Write the proportion equation
   70,664.06 : 105,995.83 = 67,116.47 : x
2. Step 2: Convert to fraction form
   70,664.06/105,995.83 = 67,116.47/x
3. Step 3: Cross multiply
   70,664.06x = 105,995.83 × 67,116.47
4. Step 4: Simplify right side
   70,664.06x = 7,114,065,944.32
5. Step 5: Solve for x
   x = 7,114,065,944.32/70,664.06
6. Step 6: Final answer
   x = 100,674.46