Finding the Fourth Proportional to 70,168.32, 105,254.64 and 30,705.12

Step by Step Solution

1. Step 1: Write the proportion equation
   70,168.32 : 105,254.64 = 30,705.12 : x
2. Step 2: Convert to fraction form
   70,168.32/105,254.64 = 30,705.12/x
3. Step 3: Cross multiply
   70,168.32x = 105,254.64 × 30,705.12
4. Step 4: Simplify right side
   70,168.32x = 3,231,856,351.76
5. Step 5: Solve for x
   x = 3,231,856,351.76/70,168.32
6. Step 6: Final answer
   x = 46,058.63