Finding the Fourth Proportional to 31,590.72, 47,385 and 9,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,590.72 : 47,385 = 9,404.10 : x
2. Step 2: Convert to fraction form
   31,590.72/47,385 = 9,404.10/x
3. Step 3: Cross multiply
   31,590.72x = 47,385 × 9,404.10
4. Step 4: Simplify right side
   31,590.72x = 445,613,278.50
5. Step 5: Solve for x
   x = 445,613,278.50/31,590.72
6. Step 6: Final answer
   x = 14,105.83