Finding the Fourth Proportional to 70,509.55, 105,796.61 and 30,540.76

Step by Step Solution

1. Step 1: Write the proportion equation
   70,509.55 : 105,796.61 = 30,540.76 : x
2. Step 2: Convert to fraction form
   70,509.55/105,796.61 = 30,540.76/x
3. Step 3: Cross multiply
   70,509.55x = 105,796.61 × 30,540.76
4. Step 4: Simplify right side
   70,509.55x = 3,231,108,874.82
5. Step 5: Solve for x
   x = 3,231,108,874.82/70,509.55
6. Step 6: Final answer
   x = 45,825.12