Finding the Fourth Proportional to 70,967.72, 105,825.53 and 67,479.56

Step by Step Solution

1. Step 1: Write the proportion equation
   70,967.72 : 105,825.53 = 67,479.56 : x
2. Step 2: Convert to fraction form
   70,967.72/105,825.53 = 67,479.56/x
3. Step 3: Cross multiply
   70,967.72x = 105,825.53 × 67,479.56
4. Step 4: Simplify right side
   70,967.72x = 7,141,060,201.17
5. Step 5: Solve for x
   x = 7,141,060,201.17/70,967.72
6. Step 6: Final answer
   x = 100,624.06