Finding the Fourth Proportional to 39,065.69, 58,470.15 and 21,269.18

Step by Step Solution

1. Step 1: Write the proportion equation
   39,065.69 : 58,470.15 = 21,269.18 : x
2. Step 2: Convert to fraction form
   39,065.69/58,470.15 = 21,269.18/x
3. Step 3: Cross multiply
   39,065.69x = 58,470.15 × 21,269.18
4. Step 4: Simplify right side
   39,065.69x = 1,243,612,144.98
5. Step 5: Solve for x
   x = 1,243,612,144.98/39,065.69
6. Step 6: Final answer
   x = 31,833.87