Finding the Fourth Proportional to 70,436.26, 105,666.69 and 30,992.35

Step by Step Solution

1. Step 1: Write the proportion equation
   70,436.26 : 105,666.69 = 30,992.35 : x
2. Step 2: Convert to fraction form
   70,436.26/105,666.69 = 30,992.35/x
3. Step 3: Cross multiply
   70,436.26x = 105,666.69 × 30,992.35
4. Step 4: Simplify right side
   70,436.26x = 3,274,859,039.82
5. Step 5: Solve for x
   x = 3,274,859,039.82/70,436.26
6. Step 6: Final answer
   x = 46,493.94