Finding the Fourth Proportional to 39,061.72, 58,514.21 and 17,972.38

Step by Step Solution

1. Step 1: Write the proportion equation
   39,061.72 : 58,514.21 = 17,972.38 : x
2. Step 2: Convert to fraction form
   39,061.72/58,514.21 = 17,972.38/x
3. Step 3: Cross multiply
   39,061.72x = 58,514.21 × 17,972.38
4. Step 4: Simplify right side
   39,061.72x = 1,051,639,381.37
5. Step 5: Solve for x
   x = 1,051,639,381.37/39,061.72
6. Step 6: Final answer
   x = 26,922.51