Finding the Fourth Proportional to 70,436.70, 105,667.35 and 30,992.79

Step by Step Solution

1. Step 1: Write the proportion equation
   70,436.70 : 105,667.35 = 30,992.79 : x
2. Step 2: Convert to fraction form
   70,436.70/105,667.35 = 30,992.79/x
3. Step 3: Cross multiply
   70,436.70x = 105,667.35 × 30,992.79
4. Step 4: Simplify right side
   70,436.70x = 3,274,925,988.41
5. Step 5: Solve for x
   x = 3,274,925,988.41/70,436.70
6. Step 6: Final answer
   x = 46,494.60