Finding the Fourth Proportional to 70,233.51, 105,080.71 and 40,262.12

Step by Step Solution

1. Step 1: Write the proportion equation
   70,233.51 : 105,080.71 = 40,262.12 : x
2. Step 2: Convert to fraction form
   70,233.51/105,080.71 = 40,262.12/x
3. Step 3: Cross multiply
   70,233.51x = 105,080.71 × 40,262.12
4. Step 4: Simplify right side
   70,233.51x = 4,230,772,155.71
5. Step 5: Solve for x
   x = 4,230,772,155.71/70,233.51
6. Step 6: Final answer
   x = 60,238.65