Finding the Fourth Proportional to 34,504.12, 47,581.86 and 21,907

Step by Step Solution

1. Step 1: Write the proportion equation
   34,504.12 : 47,581.86 = 21,907 : x
2. Step 2: Convert to fraction form
   34,504.12/47,581.86 = 21,907/x
3. Step 3: Cross multiply
   34,504.12x = 47,581.86 × 21,907
4. Step 4: Simplify right side
   34,504.12x = 1,042,375,807.02
5. Step 5: Solve for x
   x = 1,042,375,807.02/34,504.12
6. Step 6: Final answer
   x = 30,210.18