Finding the Fourth Proportional to 70,531.09, 105,812.76 and 30,556.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,531.09 : 105,812.76 = 30,556.72 : x
2. Step 2: Convert to fraction form
   70,531.09/105,812.76 = 30,556.72/x
3. Step 3: Cross multiply
   70,531.09x = 105,812.76 × 30,556.72
4. Step 4: Simplify right side
   70,531.09x = 3,233,290,571.18
5. Step 5: Solve for x
   x = 3,233,290,571.18/70,531.09
6. Step 6: Final answer
   x = 45,842.06