Finding the Fourth Proportional to 30,801.69, 46,207.52 and 12,071.57

Step by Step Solution

1. Step 1: Write the proportion equation
   30,801.69 : 46,207.52 = 12,071.57 : x
2. Step 2: Convert to fraction form
   30,801.69/46,207.52 = 12,071.57/x
3. Step 3: Cross multiply
   30,801.69x = 46,207.52 × 12,071.57
4. Step 4: Simplify right side
   30,801.69x = 557,797,457.90
5. Step 5: Solve for x
   x = 557,797,457.90/30,801.69
6. Step 6: Final answer
   x = 18,109.31