Finding the Fourth Proportional to 39,061.38, 58,590.72 and 10,981.65

Step by Step Solution

1. Step 1: Write the proportion equation
   39,061.38 : 58,590.72 = 10,981.65 : x
2. Step 2: Convert to fraction form
   39,061.38/58,590.72 = 10,981.65/x
3. Step 3: Cross multiply
   39,061.38x = 58,590.72 × 10,981.65
4. Step 4: Simplify right side
   39,061.38x = 643,422,780.29
5. Step 5: Solve for x
   x = 643,422,780.29/39,061.38
6. Step 6: Final answer
   x = 16,472.10