Finding the Fourth Proportional to 353,462.72, 530,243.28 and 113,583.78

Step by Step Solution

1. Step 1: Write the proportion equation
   353,462.72 : 530,243.28 = 113,583.78 : x
2. Step 2: Convert to fraction form
   353,462.72/530,243.28 = 113,583.78/x
3. Step 3: Cross multiply
   353,462.72x = 530,243.28 × 113,583.78
4. Step 4: Simplify right side
   353,462.72x = 60,227,036,062.00
5. Step 5: Solve for x
   x = 60,227,036,062.00/353,462.72
6. Step 6: Final answer
   x = 170,391.48