Finding the Fourth Proportional to 70,433.51, 105,684.44 and 30,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,433.51 : 105,684.44 = 30,985.50 : x
2. Step 2: Convert to fraction form
   70,433.51/105,684.44 = 30,985.50/x
3. Step 3: Cross multiply
   70,433.51x = 105,684.44 × 30,985.50
4. Step 4: Simplify right side
   70,433.51x = 3,274,685,060.69
5. Step 5: Solve for x
   x = 3,274,685,060.69/70,433.51
6. Step 6: Final answer
   x = 46,493.29