Finding the Fourth Proportional to 70,315.02, 105,460.56 and 30,861.54

Step by Step Solution

1. Step 1: Write the proportion equation
   70,315.02 : 105,460.56 = 30,861.54 : x
2. Step 2: Convert to fraction form
   70,315.02/105,460.56 = 30,861.54/x
3. Step 3: Cross multiply
   70,315.02x = 105,460.56 × 30,861.54
4. Step 4: Simplify right side
   70,315.02x = 3,254,675,290.86
5. Step 5: Solve for x
   x = 3,254,675,290.86/70,315.02
6. Step 6: Final answer
   x = 46,287.06