Finding the Fourth Proportional to 20,733.01, 31,105.76 and 7,404.30

Step by Step Solution

1. Step 1: Write the proportion equation
   20,733.01 : 31,105.76 = 7,404.30 : x
2. Step 2: Convert to fraction form
   20,733.01/31,105.76 = 7,404.30/x
3. Step 3: Cross multiply
   20,733.01x = 31,105.76 × 7,404.30
4. Step 4: Simplify right side
   20,733.01x = 230,316,341.75
5. Step 5: Solve for x
   x = 230,316,341.75/20,733.01
6. Step 6: Final answer
   x = 11,108.68