Finding the Fourth Proportional to 31,618.80, 47,436.57 and 10,562.58

Step by Step Solution

1. Step 1: Write the proportion equation
   31,618.80 : 47,436.57 = 10,562.58 : x
2. Step 2: Convert to fraction form
   31,618.80/47,436.57 = 10,562.58/x
3. Step 3: Cross multiply
   31,618.80x = 47,436.57 × 10,562.58
4. Step 4: Simplify right side
   31,618.80x = 501,052,565.55
5. Step 5: Solve for x
   x = 501,052,565.55/31,618.80
6. Step 6: Final answer
   x = 15,846.67